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machine: fix usb truncation?

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Remove the sendUSBPacket maxLen param because this greatly confused the compiler.
It also fixes a bug where the length provided to the hardware may not match the length of the packet.
sendUSBPacket now panics if the sent packet is too big.

I also fixed some of the string descriptor logic where we could create a packet without fully populating it.

RP2* systems might require some more work since they are implemented very differently?
I don't have any of those to test with yet, so maybe someone can deal with them in a seperate PR?
This commit is contained in:
Nia Waldvogel
2025-12-30 15:51:27 -05:00
committed by Ron Evans
parent c7f62bae9b
commit 8ef36ed939
8 changed files with 130 additions and 98 deletions
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builder/sizes_test.go
+1 -1
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@@ -44,7 +44,7 @@ func TestBinarySize(t *testing.T) {
// microcontrollers
{"hifive1b", "examples/echo", 3668, 280, 0, 2244},
{"microbit", "examples/serial", 2694, 342, 8, 2248},
{"wioterminal", "examples/pininterrupt", 7187, 1489, 116, 6888},
{"wioterminal", "examples/pininterrupt", 6833, 1491, 120, 6888},
// TODO: also check wasm. Right now this is difficult, because
// wasm binaries are run through wasm-opt and therefore the