USBD_CUSTOM_HID_SendReport function makes devise busy but no one can make device unbusy.

[dungeonlords789]

I create Custom hid and send 2 PC report using

while(1){

USBD_CUSTOM_HID_SendReport(&hUsbDeviceFS, dataToSend, 4);

}

And... Device is frozen. Why? I am going inside HAL->USBD_CUSTOM_HID_SendReport... I see code

hhid->state = CUSTOM_HID_BUSY;

so USBD_CUSTOM_HID_SendReport function makes devise busy but no one can make device unbusy. Is it ok?

[cchao]

Please check your device descriptor and endpoint descriptor to check whether it works correct or not.

Normally it depends on the size or endpoint buffer setting wrong.

[Pavel A. · Accepted solution]

The endpoint is marked "unbusy" when the host sends IN request and the controller spews the queued data on the wire. If this does not occur -either the host does not read, or something is wrong with setup of USB controller & device.

-- pa