[Libusb-devel] Libusb usb_control_msg() examples

[Felipe B. <fel...@us...>]

Hello all,

does anyone here have good examples of usb_control_msg() usage??

I've being trying to send a SET_FEATURE command to a specific port in
my computer... but I'm always getting Broken Pipe from IOCTL (I've
straced my software).

If anyone could help me with that.. I'd be really glad...

Here's part of my code:
static int usb_exec_test_j(usb_dev_handle *udev)
{
	return usb_control_msg(udev, USB_PORT_SET_FEATURE, USB_REQ_SET_FEATURE,
			USB_PORT_FEAT_TEST, (TEST_J << 8) | 0x02, NULL, 0, TIMEOUT);
}


This, sould put the USB Controller into TEST_J mode... could anyone
help me with this???

Thanks a lot.

-- 
Best Regards,

Felipe Balbi
fel...@us...