Commit a2cd612d authored Dec 09, 2013 by Thomas Pugliese Committed by Greg Kroah-Hartman Dec 09, 2013

usb: core: allow isoc URBs for wireless devices with an interval < 6



In usb_submit_urb, do not fail if an isoc URB for a wireless USB device
has an interval < 6.  Per WUSB spec, isoc endpoints can support values
from 1-16.  Valid values for interrupt URBs for wireless USB devices are
still 6-16.

Signed-off-by: Thomas Pugliese <thomas.pugliese@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

parent 7005234c

drivers/usb/core/urb.c

+2 −2

Original line number	Diff line number	Diff line
		@@ -492,9 +492,9 @@ int usb_submit_urb(struct urb *urb, gfp_t mem_flags)
		/* too small? */
		switch (dev->speed) {
		case USB_SPEED_WIRELESS:
		if (urb->interval < 6)
		if ((urb->interval < 6)
		&& (xfertype == USB_ENDPOINT_XFER_INT))
		return -EINVAL;
		break;
		default:
		if (urb->interval <= 0)
		return -EINVAL;