Hi,
Only recently I've bought a USB tablet, and I want to create an Xinput driver
for it. I've been messing with it, and I can get a proper report out of it,
and I can decode that report. I get the report with a GET_DESCRIPTOR call,
with wValue set to (USB_DT_REPORT<<8).
According to the HID specifications, I should be able to do a GET_REPORT request,
but if I send the following usb_control_msg (ripped from usbutils:lsusb.c)
usb_control_msg(fd,
USB_DIR_IN | USB_DT_HID,
USB_REQ_GET_REPORT,
reportNumber,
0,
sz,
mybuf)
it always returns with errno==16: "Device or resource busy"
What I really'd like to do is to set a feature somewhere in the HID report tree.
How can I do that?
What am I doing wrong?
Kojak
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