USB Vendor request type in Python

[emard]

I'm trying to make simple project that would respond to
usb out vendor request but unsuccessful, not shure is it
bug or I don't know what to write.

I can get response to class request, but not to vendor request

this works
bmRequestType = usb.util.CTRL_OUT | usb.util.CTRL_TYPE_CLASS | usb.util.CTRL_RECIPIENT_DEVICE

this doesn't work
bmRequestType = usb.util.CTRL_OUT | usb.util.CTRL_TYPE_VENDOR | usb.util.CTRL_RECIPIENT_DEVICE

i don't know what's wrong in control_xfer_cb(), just replaced there
CLASS with VENDOR and it doesn't work

please add more examples for vendor request and/or more
examples for usb

[projectgus]

TinyUSB passes vendor requests to a different C callback, tud_vendor_control_xfer_cb. This callback is not currently exposed to the USB layer, so this unfortunately won't work. I'd like to expose this callback to Python, but haven't had time to work on it.

Are you trying to implement WebUSB, or something else?