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refactor USB package with device class build tags
added basic HID keyboard support for SAMx51 (not fully-functional)
This commit is contained in:
sago35
@@ -0,0 +1,511 @@
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//go:build baremetal && usb.hid
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// +build baremetal,usb.hid
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package usb
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// USB HID constants defined per specification
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const (
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// HID class
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descHIDType = 0x03
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// HID subclass
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descHIDSubNone = 0x00
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descHIDSubBoot = 0x01
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// HID protocol
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descHIDProtoNone = 0x00
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descHIDProtoKeyboard = 0x01
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descHIDProtoMouse = 0x02
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descHIDRequestGetReport = 0x01 // HID request GET_REPORT
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descHIDRequestGetReportTypeInput = 0x01 // HID request GET_REPORT type INPUT
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descHIDRequestGetReportTypeOutput = 0x02 // HID request GET_REPORT type OUTPUT
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descHIDRequestGetReportTypeFeature = 0x03 // HID request GET_REPORT type FEATURE
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descHIDRequestGetIdle = 0x02 // HID request GET_IDLE
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descHIDRequestGetProtocol = 0x03 // HID request GET_PROTOCOL
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descHIDRequestSetReport = 0x09 // HID request SET_REPORT
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descHIDRequestSetIdle = 0x0A // HID request SET_IDLE
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descHIDRequestSetProtocol = 0x0B // HID request SET_PROTOCOL
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)
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const (
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// Size of all HID configuration descriptors.
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descHIDConfigSize = uint16(
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descLengthConfigure + // Configuration Header
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descLengthInterface + // Keyboard Interface Descriptor
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descLengthInterface + // Keyboard HID Interface Descriptor
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descLengthEndpoint + // Keyboard Endpoint Descriptor
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descLengthInterface + // Mouse Interface Descriptor
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descLengthInterface + // Mouse HID Interface Descriptor
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descLengthEndpoint + // Mouse Endpoint Descriptor
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descLengthInterface + // Serial Interface Descriptor
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descLengthInterface + // Serial HID Interface Descriptor
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descLengthEndpoint + // Serial Tx Endpoint Descriptor
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descLengthEndpoint + // Serial Rx Endpoint Descriptor
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descLengthInterface + // Joystick Interface Descriptor
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descLengthInterface + // Joystick HID Interface Descriptor
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descLengthEndpoint + // Joystick Endpoint Descriptor
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descLengthInterface + // Keyboard Media Keys Interface Descriptor
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descLengthInterface + // Keyboard Media Keys HID Interface Descriptor
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descLengthEndpoint) // Keyboard Media Keys Endpoint Descriptor
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// Position of each HID interface descriptor as offsets into the configuration
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// descriptor. See comments in the configuration descriptor definition for the
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// incremental tally that computes these.
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descHIDConfigKeyboardPos = 18
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descHIDConfigMousePos = 43
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descHIDConfigSerialPos = 68
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descHIDConfigJoystickPos = 100
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descHIDConfigMediaKeyPos = 125
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)
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// Common configuration constants for the USB HID device class.
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const (
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descHIDLanguageCount = 1 // String descriptor languages available
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descHIDInterfaceCount = 5 // Interfaces for all HID configurations.
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descHIDEndpointCount = 6 // Endpoints for all HID configurations.
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descHIDEndpointCtrl = 0 // HID Control Endpoint 0
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descHIDInterfaceKeyboard = 0 // HID Keyboard Interface
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descHIDEndpointKeyboard = 3 // HID Keyboard IN Endpoint
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descHIDConfigAttrKeyboard = descEndptConfigAttrTxInterrupt | descEndptConfigAttrRxUnused
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descHIDInterfaceMouse = 1 // HID Mouse Interface
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descHIDEndpointMouse = 5 // HID Mouse IN Endpoint
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descHIDConfigAttrMouse = descEndptConfigAttrTxInterrupt | descEndptConfigAttrRxUnused
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descHIDInterfaceSerial = 2 // HID Serial (UART emulation) Interface
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descHIDEndpointSerialRx = 2 // HID Serial OUT (Rx) Endpoint
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descHIDEndpointSerialTx = 2 // HID Serial IN (Tx) Endpoint
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descHIDConfigAttrSerial = descEndptConfigAttrTxInterrupt | descEndptConfigAttrRxInterrupt
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descHIDInterfaceJoystick = 3 // HID Joystick Interface
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descHIDEndpointJoystick = 6 // HID Joystick IN Endpoint
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descHIDConfigAttrJoystick = descEndptConfigAttrTxInterrupt | descEndptConfigAttrRxUnused
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descHIDInterfaceMediaKey = 4 // HID Keyboard Media Keys Interface
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descHIDEndpointMediaKey = 4 // HID Keyboard Media Keys IN Endpoint
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descHIDConfigAttrMediaKey = descEndptConfigAttrTxInterrupt | descEndptConfigAttrRxUnused
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)
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// descHIDClass holds references to all descriptors, buffers, and control
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// structures for the USB HID device class.
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type descHIDClass struct {
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*descHIDClassData // Target-defined, class-specific data
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locale *[descHIDLanguageCount]descStringLanguage // string descriptors
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device *[descLengthDevice]uint8 // device descriptor
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qualif *[descLengthQualification]uint8 // device qualification descriptor
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config *[descHIDConfigSize]uint8 // configuration descriptor
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}
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// descHID holds statically-allocated instances for each of the HID device class
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// configurations, ordered by index (offset by -1).
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var descHID = [dcdCount]descHIDClass{
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{ // HID class configuration index 1
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descHIDClassData: &descHIDData[0],
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locale: &[descHIDLanguageCount]descStringLanguage{
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{ // [0x0409] US English
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language: descLanguageEnglish,
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descriptor: descStringIndex{
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{ /* [0] Language */
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4,
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descTypeString,
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lsU8(descLanguageEnglish),
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msU8(descLanguageEnglish),
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},
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// Actual string descriptors (index > 0) are copied into here at runtime!
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// This allows for application- or even user-defined string descriptors.
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{ /* [1] Manufacturer */ },
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{ /* [2] Product */ },
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{ /* [3] Serial Number */ },
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},
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},
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},
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device: &[descLengthDevice]uint8{
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descLengthDevice, // Size of this descriptor in bytes
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descTypeDevice, // Descriptor Type
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lsU8(descUSBSpecVersion), // USB Specification Release Number in BCD (low)
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msU8(descUSBSpecVersion), // USB Specification Release Number in BCD (high)
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0, // Class code (assigned by the USB-IF).
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0, // Subclass code (assigned by the USB-IF).
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0, // Protocol code (assigned by the USB-IF).
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descEndptMaxPktSize, // Maximum packet size for endpoint zero (8, 16, 32, or 64)
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lsU8(descCommonVendorID), // Vendor ID (low) (assigned by the USB-IF)
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msU8(descCommonVendorID), // Vendor ID (high) (assigned by the USB-IF)
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lsU8(descCommonProductID), // Product ID (low) (assigned by the manufacturer)
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msU8(descCommonProductID), // Product ID (high) (assigned by the manufacturer)
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lsU8(descCommonReleaseID), // Device release number in BCD (low)
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msU8(descCommonReleaseID), // Device release number in BCD (high)
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1, // Index of string descriptor describing manufacturer
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2, // Index of string descriptor describing product
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3, // Index of string descriptor describing the device's serial number
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descHIDCount, // Number of possible configurations
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},
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qualif: &[descLengthQualification]uint8{
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descLengthQualification, // Size of this descriptor in bytes
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descTypeQualification, // Descriptor Type
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lsU8(descUSBSpecVersion), // USB Specification Release Number in BCD (low)
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msU8(descUSBSpecVersion), // USB Specification Release Number in BCD (high)
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0, // Class code (assigned by the USB-IF).
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0, // Subclass code (assigned by the USB-IF).
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0, // Protocol code (assigned by the USB-IF).
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descEndptMaxPktSize, // Maximum packet size for endpoint zero (8, 16, 32, or 64)
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descHIDCount, // Number of possible configurations
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0, // Reserved
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},
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config: &[descHIDConfigSize]uint8{
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// [0+9]
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descLengthConfigure, // Size of this descriptor in bytes
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descTypeConfigure, // Descriptor Type
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lsU8(descHIDConfigSize), // Total length of data returned for this configuration (low)
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msU8(descHIDConfigSize), // Total length of data returned for this configuration (high)
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descHIDInterfaceCount, // Number of interfaces supported by this configuration
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1, // Value to use to select this configuration (1 = CDC-ACM[0])
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0, // Index of string descriptor describing this configuration
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descEndptConfigAttr, // Configuration attributes
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descHIDMaxPowerMa >> 1, // Max power consumption when fully-operational (2 mA units)
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// [9+9] Keyboard Interface Descriptor
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descLengthInterface, // Descriptor length
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descTypeInterface, // Descriptor type
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descHIDInterfaceKeyboard, // Interface index
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0, // Alternate setting
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1, // Number of endpoints
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descHIDType, // Class code (HID = 0x03)
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descHIDSubBoot, // Subclass code (Boot = 0x01)
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descHIDProtoKeyboard, // Protocol code (Keyboard = 0x01)
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0, // Interface Description String Index
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// [18+9] Keyboard HID Interface Descriptor
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descLengthInterface, // Descriptor length
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descTypeHID, // Descriptor type
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0x11, // HID BCD (low)
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0x01, // HID BCD (high)
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0, // Country code
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1, // Number of descriptors
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descTypeHIDReport, // Descriptor type
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lsU8(uint16(len(descHIDReportKeyboard))), // Descriptor length (low)
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msU8(uint16(len(descHIDReportKeyboard))), // Descriptor length (high)
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// [27+7] Keyboard Endpoint Descriptor
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descLengthEndpoint, // Size of this descriptor in bytes
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descTypeEndpoint, // Descriptor Type
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descHIDEndpointKeyboard | // Endpoint address
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descEndptAddrDirectionIn,
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descEndptTypeInterrupt, // Attributes
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lsU8(descHIDKeyboardTxPacketSize), // Max packet size (low)
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msU8(descHIDKeyboardTxPacketSize), // Max packet size (high)
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descHIDKeyboardTxInterval, // Polling Interval
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// [34+9] Mouse Interface Descriptor
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descLengthInterface, // Descriptor length
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descTypeInterface, // Descriptor type
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descHIDInterfaceMouse, // Interface index
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0, // Alternate setting
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1, // Number of endpoints
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descHIDType, // Class code (HID = 0x03)
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descHIDSubBoot, // Subclass code (Boot = 0x01)
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descHIDProtoMouse, // Protocol code (Mouse = 0x02)
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0, // Interface Description String Index
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// [43+9] Mouse HID Interface Descriptor
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descLengthInterface, // Descriptor length
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descTypeHID, // Descriptor type
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0x11, // HID BCD (low)
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0x01, // HID BCD (high)
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0, // Country code
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1, // Number of descriptors
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descTypeHIDReport, // Descriptor type
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lsU8(uint16(len(descHIDReportMouse))), // Descriptor length (low)
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msU8(uint16(len(descHIDReportMouse))), // Descriptor length (high)
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// [52+7] Mouse Endpoint Descriptor
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descLengthEndpoint, // Size of this descriptor in bytes
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descTypeEndpoint, // Descriptor Type
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descHIDEndpointMouse | // Endpoint address
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descEndptAddrDirectionIn,
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descEndptTypeInterrupt, // Attributes
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lsU8(descHIDMouseTxPacketSize), // Max packet size (low)
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msU8(descHIDMouseTxPacketSize), // Max packet size (high)
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descHIDMouseTxInterval, // Polling Interval
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// [59+9] Serial Interface Descriptor
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descLengthInterface, // Descriptor length
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descTypeInterface, // Descriptor type
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descHIDInterfaceSerial, // Interface index
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0, // Alternate setting
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2, // Number of endpoints
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descHIDType, // Class code (HID = 0x03)
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descHIDSubNone, // Subclass code
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descHIDProtoNone, // Protocol code
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0, // Interface Description String Index
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// [68+9] Serial HID Interface Descriptor
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descLengthInterface, // Descriptor length
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descTypeHID, // Descriptor type
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0x11, // HID BCD (low)
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0x01, // HID BCD (high)
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0, // Country code
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1, // Number of descriptors
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descTypeHIDReport, // Descriptor type
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lsU8(uint16(len(descHIDReportSerial))), // Descriptor length (low)
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msU8(uint16(len(descHIDReportSerial))), // Descriptor length (high)
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// [77+7] Serial Tx Endpoint Descriptor
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descLengthEndpoint, // Size of this descriptor in bytes
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descTypeEndpoint, // Descriptor Type
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descHIDEndpointSerialTx | // Endpoint address
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descEndptAddrDirectionIn,
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descEndptTypeInterrupt, // Attributes
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lsU8(descHIDSerialTxPacketSize), // Max packet size (low)
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msU8(descHIDSerialTxPacketSize), // Max packet size (high)
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descHIDSerialTxInterval, // Polling Interval
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// [84+7] Serial Rx Endpoint Descriptor
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descLengthEndpoint, // Size of this descriptor in bytes
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descTypeEndpoint, // Descriptor Type
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descHIDEndpointSerialRx | // Endpoint address
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descEndptAddrDirectionOut,
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descEndptTypeInterrupt, // Attributes
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lsU8(descHIDSerialRxPacketSize), // Max packet size (low)
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msU8(descHIDSerialRxPacketSize), // Max packet size (high)
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descHIDSerialRxInterval, // Polling Interval
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// [91+9] Joystick Interface Descriptor
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descLengthInterface, // Descriptor length
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descTypeInterface, // Descriptor type
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descHIDInterfaceJoystick, // Interface index
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0, // Alternate setting
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1, // Number of endpoints
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descHIDType, // Class code (HID = 0x03)
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descHIDSubNone, // Subclass code
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descHIDProtoNone, // Protocol code
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0, // Interface Description String Index
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// [100+9] Joystick HID Interface Descriptor
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descLengthInterface, // Descriptor length
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descTypeHID, // Descriptor type
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0x11, // HID BCD (low)
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0x01, // HID BCD (high)
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0, // Country code
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1, // Number of descriptors
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descTypeHIDReport, // Descriptor type
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lsU8(uint16(len(descHIDReportJoystick))), // Descriptor length (low)
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msU8(uint16(len(descHIDReportJoystick))), // Descriptor length (high)
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// [109+7] Joystick Endpoint Descriptor
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descLengthEndpoint, // Size of this descriptor in bytes
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descTypeEndpoint, // Descriptor Type
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descHIDEndpointJoystick | // Endpoint address
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descEndptAddrDirectionIn,
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descEndptTypeInterrupt, // Attributes
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lsU8(descHIDJoystickTxPacketSize), // Max packet size (low)
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msU8(descHIDJoystickTxPacketSize), // Max packet size (high)
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descHIDJoystickTxInterval, // Polling Interval
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// [116+9] Keyboard Media Keys Interface Descriptor
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descLengthInterface, // Descriptor length
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descTypeInterface, // Descriptor type
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descHIDInterfaceMediaKey, // Interface index
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0, // Alternate setting
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1, // Number of endpoints
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descHIDType, // Class code (HID = 0x03)
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descHIDSubNone, // Subclass code
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descHIDProtoNone, // Protocol code
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0, // Interface Description String Index
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// [125+9] Keyboard Media Keys HID Interface Descriptor
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descLengthInterface, // Descriptor length
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descTypeHID, // Descriptor type
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0x11, // HID BCD (low)
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0x01, // HID BCD (high)
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0, // Country code
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1, // Number of descriptors
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descTypeHIDReport, // Descriptor type
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lsU8(uint16(len(descHIDReportMediaKey))), // Descriptor length (low)
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msU8(uint16(len(descHIDReportMediaKey))), // Descriptor length (high)
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// [134+7] Keyboard Media Keys Endpoint Descriptor
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descLengthEndpoint, // Size of this descriptor in bytes
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descTypeEndpoint, // Descriptor Type
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descHIDEndpointMediaKey | // Endpoint address
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descEndptAddrDirectionIn,
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descEndptTypeInterrupt, // Attributes
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lsU8(descHIDMediaKeyTxPacketSize), // Max packet size (low)
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msU8(descHIDMediaKeyTxPacketSize), // Max packet size (high)
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descHIDMediaKeyTxInterval, // Polling Interval
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},
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},
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}
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var descHIDReportSerial = [...]uint8{
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0x06, 0xC9, 0xFF, // Usage Page 0xFFC9 (vendor defined)
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0x09, 0x04, // Usage 0x04
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0xA1, 0x5C, // Collection 0x5C
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0x75, 0x08, // report size = 8 bits (global)
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0x15, 0x00, // logical minimum = 0 (global)
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0x26, 0xFF, 0x00, // logical maximum = 255 (global)
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0x95, descHIDSerialTxPacketSize, // report count (global)
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0x09, 0x75, // usage (local)
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0x81, 0x02, // Input
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0x95, descHIDSerialRxPacketSize, // report count (global)
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0x09, 0x76, // usage (local)
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0x91, 0x02, // Output
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0x95, 0x04, // report count (global)
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0x09, 0x76, // usage (local)
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0xB1, 0x02, // Feature
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0xC0, // end collection
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}
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var descHIDReportKeyboard = [...]uint8{
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0x05, 0x01, // Usage Page (Generic Desktop)
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0x09, 0x06, // Usage (Keyboard)
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0xA1, 0x01, // Collection (Application)
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0x75, 0x01, // Report Size (1)
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0x95, 0x08, // Report Count (8)
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0x05, 0x07, // Usage Page (Key Codes)
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0x19, 0xE0, // Usage Minimum (224)
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0x29, 0xE7, // Usage Maximum (231)
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0x15, 0x00, // Logical Minimum (0)
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0x25, 0x01, // Logical Maximum (1)
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0x81, 0x02, // Input (Data, Variable, Absolute) [Modifier keys]
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0x95, 0x01, // Report Count (1)
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0x75, 0x08, // Report Size (8)
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0x81, 0x03, // Input (Constant) [Reserved byte]
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0x95, 0x05, // Report Count (5)
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0x75, 0x01, // Report Size (1)
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0x05, 0x08, // Usage Page (LEDs)
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0x19, 0x01, // Usage Minimum (1)
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0x29, 0x05, // Usage Maximum (5)
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0x91, 0x02, // Output (Data, Variable, Absolute) [LED report]
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0x95, 0x01, // Report Count (1)
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0x75, 0x03, // Report Size (3)
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0x91, 0x03, // Output (Constant) [LED report padding]
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0x95, 0x06, // Report Count (6)
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0x75, 0x08, // Report Size (8)
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0x15, 0x00, // Logical Minimum (0)
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0x25, 0x7F, // Logical Maximum(104)
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0x05, 0x07, // Usage Page (Key Codes)
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0x19, 0x00, // Usage Minimum (0)
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0x29, 0x7F, // Usage Maximum (104)
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0x81, 0x00, // Input (Data, Array) [Normal keys]
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0xC0, // End Collection
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}
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var descHIDReportMediaKey = [...]uint8{
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0x05, 0x0C, // Usage Page (Consumer)
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0x09, 0x01, // Usage (Consumer Controls)
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0xA1, 0x01, // Collection (Application)
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0x75, 0x0A, // Report Size (10)
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0x95, 0x04, // Report Count (4)
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0x19, 0x00, // Usage Minimum (0)
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0x2A, 0x9C, 0x02, // Usage Maximum (0x29C)
|
||||
0x15, 0x00, // Logical Minimum (0)
|
||||
0x26, 0x9C, 0x02, // Logical Maximum (0x29C)
|
||||
0x81, 0x00, // Input (Data, Array)
|
||||
0x05, 0x01, // Usage Page (Generic Desktop)
|
||||
0x75, 0x08, // Report Size (8)
|
||||
0x95, 0x03, // Report Count (3)
|
||||
0x19, 0x00, // Usage Minimum (0)
|
||||
0x29, 0xB7, // Usage Maximum (0xB7)
|
||||
0x15, 0x00, // Logical Minimum (0)
|
||||
0x26, 0xB7, 0x00, // Logical Maximum (0xB7)
|
||||
0x81, 0x00, // Input (Data, Array)
|
||||
0xC0, // End Collection
|
||||
}
|
||||
|
||||
var descHIDReportMouse = [...]uint8{
|
||||
0x05, 0x01, // Usage Page (Generic Desktop)
|
||||
0x09, 0x02, // Usage (Mouse)
|
||||
0xA1, 0x01, // Collection (Application)
|
||||
0x85, 0x01, // REPORT_ID (1)
|
||||
0x05, 0x09, // Usage Page (Button)
|
||||
0x19, 0x01, // Usage Minimum (Button #1)
|
||||
0x29, 0x08, // Usage Maximum (Button #8)
|
||||
0x15, 0x00, // Logical Minimum (0)
|
||||
0x25, 0x01, // Logical Maximum (1)
|
||||
0x95, 0x08, // Report Count (8)
|
||||
0x75, 0x01, // Report Size (1)
|
||||
0x81, 0x02, // Input (Data, Variable, Absolute)
|
||||
0x05, 0x01, // Usage Page (Generic Desktop)
|
||||
0x09, 0x30, // Usage (X)
|
||||
0x09, 0x31, // Usage (Y)
|
||||
0x09, 0x38, // Usage (Wheel)
|
||||
0x15, 0x81, // Logical Minimum (-127)
|
||||
0x25, 0x7F, // Logical Maximum (127)
|
||||
0x75, 0x08, // Report Size (8),
|
||||
0x95, 0x03, // Report Count (3),
|
||||
0x81, 0x06, // Input (Data, Variable, Relative)
|
||||
0x05, 0x0C, // Usage Page (Consumer)
|
||||
0x0A, 0x38, 0x02, // Usage (AC Pan)
|
||||
0x15, 0x81, // Logical Minimum (-127)
|
||||
0x25, 0x7F, // Logical Maximum (127)
|
||||
0x75, 0x08, // Report Size (8),
|
||||
0x95, 0x01, // Report Count (1),
|
||||
0x81, 0x06, // Input (Data, Variable, Relative)
|
||||
0xC0, // End Collection
|
||||
0x05, 0x01, // Usage Page (Generic Desktop)
|
||||
0x09, 0x02, // Usage (Mouse)
|
||||
0xA1, 0x01, // Collection (Application)
|
||||
0x85, 0x02, // REPORT_ID (2)
|
||||
0x05, 0x01, // Usage Page (Generic Desktop)
|
||||
0x09, 0x30, // Usage (X)
|
||||
0x09, 0x31, // Usage (Y)
|
||||
0x15, 0x00, // Logical Minimum (0)
|
||||
0x26, 0xFF, 0x7F, // Logical Maximum (32767)
|
||||
0x75, 0x10, // Report Size (16),
|
||||
0x95, 0x02, // Report Count (2),
|
||||
0x81, 0x02, // Input (Data, Variable, Absolute)
|
||||
0xC0, // End Collection
|
||||
}
|
||||
|
||||
var descHIDReportJoystick = [...]uint8{
|
||||
0x05, 0x01, // Usage Page (Generic Desktop)
|
||||
0x09, 0x04, // Usage (Joystick)
|
||||
0xA1, 0x01, // Collection (Application)
|
||||
0x15, 0x00, // Logical Minimum (0)
|
||||
0x25, 0x01, // Logical Maximum (1)
|
||||
0x75, 0x01, // Report Size (1)
|
||||
0x95, 0x20, // Report Count (32)
|
||||
0x05, 0x09, // Usage Page (Button)
|
||||
0x19, 0x01, // Usage Minimum (Button #1)
|
||||
0x29, 0x20, // Usage Maximum (Button #32)
|
||||
0x81, 0x02, // Input (variable,absolute)
|
||||
0x15, 0x00, // Logical Minimum (0)
|
||||
0x25, 0x07, // Logical Maximum (7)
|
||||
0x35, 0x00, // Physical Minimum (0)
|
||||
0x46, 0x3B, 0x01, // Physical Maximum (315)
|
||||
0x75, 0x04, // Report Size (4)
|
||||
0x95, 0x01, // Report Count (1)
|
||||
0x65, 0x14, // Unit (20)
|
||||
0x05, 0x01, // Usage Page (Generic Desktop)
|
||||
0x09, 0x39, // Usage (Hat switch)
|
||||
0x81, 0x42, // Input (variable,absolute,null_state)
|
||||
0x05, 0x01, // Usage Page (Generic Desktop)
|
||||
0x09, 0x01, // Usage (Pointer)
|
||||
0xA1, 0x00, // Collection ()
|
||||
0x15, 0x00, // Logical Minimum (0)
|
||||
0x26, 0xFF, 0x03, // Logical Maximum (1023)
|
||||
0x75, 0x0A, // Report Size (10)
|
||||
0x95, 0x04, // Report Count (4)
|
||||
0x09, 0x30, // Usage (X)
|
||||
0x09, 0x31, // Usage (Y)
|
||||
0x09, 0x32, // Usage (Z)
|
||||
0x09, 0x35, // Usage (Rz)
|
||||
0x81, 0x02, // Input (variable,absolute)
|
||||
0xC0, // End Collection
|
||||
0x15, 0x00, // Logical Minimum (0)
|
||||
0x26, 0xFF, 0x03, // Logical Maximum (1023)
|
||||
0x75, 0x0A, // Report Size (10)
|
||||
0x95, 0x02, // Report Count (2)
|
||||
0x09, 0x36, // Usage (Slider)
|
||||
0x09, 0x36, // Usage (Slider)
|
||||
0x81, 0x02, // Input (variable,absolute)
|
||||
0xC0, // End Collection
|
||||
}
|
||||
Reference in New Issue
Block a user