On Sun, Dec 08, 2024 at 02:11:15AM -0600, Blake LaFleur wrote: > Adds a PID for the CH9102 chipset that can be found in some cheap ESP > development boards. > > Example: LILYGO T-Display (and its S3 variant) > https://lilygo.cc/products/lilygo%C2%AE-ttgo-t-display-1-14-inch-lcd-esp32-control-board > > After patching the driver to include idProduct=0x55d4 the devices work > as expected. Thanks for the patch. This is the first time I hear of CH9102. Are there any errors or messages at all in the logs when you use this device or does it appear to be perfectly compatible with the older models? Could you post the output of lsusb -v (with masked serial numbers if you prefer) so we have a record of any type identifying information should it ever be needed? > Signed-off-by: Blake LaFleur <blake.k.lafleur@xxxxxxxxx> > --- > drivers/usb/serial/ch341.c | 1 + > 1 file changed, 1 insertion(+) > > diff --git a/drivers/usb/serial/ch341.c b/drivers/usb/serial/ch341.c > index d10e4c4848a0..302d8d8547cb 100644 > --- a/drivers/usb/serial/ch341.c > +++ b/drivers/usb/serial/ch341.c > @@ -81,6 +81,7 @@ > #define CH341_QUIRK_SIMULATE_BREAK BIT(1) > > static const struct usb_device_id id_table[] = { > + { USB_DEVICE(0x1a86, 0x55d4) }, nit: please try to keep the entries sorted by pid. > { USB_DEVICE(0x1a86, 0x5523) }, > { USB_DEVICE(0x1a86, 0x7522) }, > { USB_DEVICE(0x1a86, 0x7523) }, Johan
