HID device enumerates but Report Descriptor is unavailable
I am programming a USB-HID device based on STM32 CubeMX Mouse example.
I made some modifications (interface, endpoints, report descriptor) and I am currently testing enumeration.
Everything seems to be OK except that the lsusb command fails to dump the report descriptor:
$lsusb
Bus 001 Device 013: ID 0483:5740 STMicroelectronics STM32F407
$sudo lsusb -v -s 001:013
Bus 001 Device 013: ID 0483:5740 STMicroelectronics STM32F407
Device Descriptor:
[...]
HID Device Descriptor:
bLength 9
bDescriptorType 33
bcdHID 1.11
bCountryCode 0 Not supported
bNumDescriptors 1
bDescriptorType 34 Report
wDescriptorLength 36
Report Descriptors:
** UNAVAILABLE **
[...]I am not sure where something is missing: on Linux side or STM32 side (on the device I did not implement the functions to send and receive data via report buffers yet).
The only link I've found related to my problem on the web is [this][1], however it lacks some explanations about what is done here...
I have also try to debug with [HIDAPI][2] but unfortunately my device does not show up on /dev/hidraw or /sys/class/hidraw so I do not know how can I debug my device.
[1]: https://poohyhoh.blogspot.com/2013/07/lsusb-usb-report-descriptor-unavailable.html