diff options
Diffstat (limited to 'drivers/usb')
| -rw-r--r-- | drivers/usb/misc/usbtest.c | 13 |
1 files changed, 13 insertions, 0 deletions
diff --git a/drivers/usb/misc/usbtest.c b/drivers/usb/misc/usbtest.c index 1fdd88f382cc..e7235d5cce85 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, |