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usb: usbtest: support bos descriptor test for usb 3.0 

In Test 9 of usbtest module, it is used for performing chapter 9 tests N
times. This patch adds to support getting bos descriptor test scenario for
USB 3.0.

Signed-off-by: Huang Rui <ray.huang@amd.com>
Acked-by: Alan Stern <stern@rowland.harvard.edu>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Huang Rui 2013-10-28 23:31:32 +08:00 committed by Greg Kroah-Hartman
parent 488c9cd34b
commit 9d3bd76846
1 changed files with 13 additions and 0 deletions
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13
drivers/usb/misc/usbtest.c
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@ -689,6 +689,19 @@ static int ch9_postconfig(struct usbtest_dev *dev)
return (retval < 0) ? retval : -EDOM;
}
/*
* there's always [9.4.3] a bos device descriptor [9.6.2] in USB
* 3.0 spec
*/
if (le16_to_cpu(udev->descriptor.bcdUSB) >= 0x0300) {
retval = usb_get_descriptor(udev, USB_DT_BOS, 0, dev->buf,
sizeof(*udev->bos->desc));
if (retval != sizeof(*udev->bos->desc)) {
dev_err(&iface->dev, "bos descriptor --> %d\n", retval);
return (retval < 0) ? retval : -EDOM;
}
}
/* there's always [9.4.3] at least one config descriptor [9.6.3] */
for (i = 0; i < udev->descriptor.bNumConfigurations; i++) {
retval = usb_get_descriptor(udev, USB_DT_CONFIG, i,