Hi, I change and now I'm using usb_control_msg instead of usb_bulk_write to=
send 8 bytes=20
to a usb device.=20
This is what I'm using:=20
int len =3D usb_control_msg(udev,0x81 + USB_TYPE_CLASS + USB_RECIP_INTERFAC=
HID_REPORT_SET, 0 + (HID_RT_OUTPUT << 8),
0x81,OutputReport, 8, 10000);
I don't know why len is always 0.