When transfer type is isochronous, the other bits (bits 5..2) of bmAttributes in
endpoint descriptor might not be set zero. So it's better to mask bmAttributes
with USB_ENDPOINT_XFERTYPE_MASK to judge the transfter type later.
Signed-off-by: Huang Rui <ray.huang@xxxxxxx>
---
drivers/usb/misc/usbtest.c | 3 ++-
1 file changed, 2 insertions(+), 1 deletion(-)
diff --git a/drivers/usb/misc/usbtest.c b/drivers/usb/misc/usbtest.c
index aa28ac8..c69f199 100644
--- a/drivers/usb/misc/usbtest.c
+++ b/drivers/usb/misc/usbtest.c
@@ -120,7 +120,8 @@ get_endpoints(struct usbtest_dev *dev, struct usb_interface *intf)
struct usb_host_endpoint *e;
e = alt->endpoint + ep;
- switch (e->desc.bmAttributes) {
+ switch (e->desc.bmAttributes &
+ USB_ENDPOINT_XFERTYPE_MASK) {
case USB_ENDPOINT_XFER_BULK:
break;
case USB_ENDPOINT_XFER_ISOC:
--
1.7.11.7
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