micropython-lib

Wykres commitów

Autor	SHA1	Wiadomość	Data
Matthias Urlichs	9307e21dfb	usb-device-cdc: Optimise writing small data so it doesn't require alloc. Only allocate a memoryview when the (first) write was partial. Signed-off-by: Matthias Urlichs <matthias@urlichs.de>	2025-04-13 13:27:47 +10:00
Angus Gratton	0a91a37563	usb-device-cdc: Fix lost data in read() path if short reads happened. If the CDC receive buffer was full and some code read less than 64 bytes (wMaxTransferSize), the CDC code would submit an OUT transfer with N<64 bytes length to fill the buffer back up. However if the host had more than N bytes to send then it would still send the full 64 bytes (correctly) in the transfer. The remaining (64-N) bytes would be lost. Adds the restriction that CDCInterface rxbuf has to be at least 64 bytes. Fixes issue #885. This work was funded through GitHub Sponsors. Signed-off-by: Angus Gratton <angus@redyak.com.au>	2024-07-03 17:17:38 +10:00
Angus Gratton	583bc0da70	usb: Add USB device support packages. These packages build on top of machine.USBDevice() to provide high level and flexible support for implementing USB devices in Python code. Additional credits, as per included copyright notices: - CDC support based on initial implementation by @hoihu with fixes by @linted. - MIDI support based on initial implementation by @paulhamsh. - HID keypad example based on work by @turmoni. - Everyone who tested and provided feedback on early versions of these packages. This work was funded through GitHub Sponsors. Signed-off-by: Angus Gratton <angus@redyak.com.au>	2024-04-30 15:57:50 +10:00

Autor

SHA1

Wiadomość

Data

Matthias Urlichs

9307e21dfb

usb-device-cdc: Optimise writing small data so it doesn't require alloc.

Only allocate a memoryview when the (first) write was partial.

Signed-off-by: Matthias Urlichs <matthias@urlichs.de>

2025-04-13 13:27:47 +10:00

Angus Gratton

0a91a37563

usb-device-cdc: Fix lost data in read() path if short reads happened.

If the CDC receive buffer was full and some code read less than 64 bytes
(wMaxTransferSize), the CDC code would submit an OUT transfer with N<64
bytes length to fill the buffer back up.

However if the host had more than N bytes to send then it would still send
the full 64 bytes (correctly) in the transfer. The remaining (64-N) bytes
would be lost.

Adds the restriction that CDCInterface rxbuf has to be at least 64 bytes.

Fixes issue #885.

This work was funded through GitHub Sponsors.

Signed-off-by: Angus Gratton <angus@redyak.com.au>

2024-07-03 17:17:38 +10:00

Angus Gratton

583bc0da70

usb: Add USB device support packages.

These packages build on top of machine.USBDevice() to provide high level
and flexible support for implementing USB devices in Python code.

Additional credits, as per included copyright notices:

- CDC support based on initial implementation by @hoihu with fixes by
  @linted.

- MIDI support based on initial implementation by @paulhamsh.

- HID keypad example based on work by @turmoni.

- Everyone who tested and provided feedback on early versions of these
  packages.

This work was funded through GitHub Sponsors.

Signed-off-by: Angus Gratton <angus@redyak.com.au>

2024-04-30 15:57:50 +10:00

3 Commity (784c55fdfb4b6dd7546259cf82474b4e2d31f024)