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@xxxxxxx>
Acked-by: Alan Stern <stern@xxxxxxxxxxxxxxxxxxx>
---
drivers/usb/misc/usbtest.c | 13 +++++++++++++
1 file changed, 13 insertions(+)
diff --git a/drivers/usb/misc/usbtest.c b/drivers/usb/misc/usbtest.c
index 3e91d3e9..38ebe1d 100644
--- a/drivers/usb/misc/usbtest.c
+++ b/drivers/usb/misc/usbtest.c
@@ -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,
--
1.7.11.7
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