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ardnew
38 lines
680 B
Go
38 lines
680 B
Go
package usb2
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import (
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"errors"
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)
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var (
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ErrInvalidPort = errors.New("invalid USB port")
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)
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type (
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UARTConfig struct {
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BaudRate uint32
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}
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// UART represents a virtual serial (UART) device emulation using the USB
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// CDC-ACM device class driver.
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UART struct {
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port int // USB port (core index, e.g., 0-1)
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core *core
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}
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)
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func (uart *UART) Configure(config UARTConfig) error {
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if uart.port >= CoreCount || uart.port >= dcdCount {
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return ErrInvalidPort
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}
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// verify we have a free USB port and take ownership of it
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var st status
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uart.core, st = initCore(uart.port, class{id: classDeviceCDCACM, config: 1})
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if !st.ok() {
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return ErrInvalidPort
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}
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return nil
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}
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