[PATCH] usb: usbtest: bmAttributes would better be masked

[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]

 



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


--
To unsubscribe from this list: send the line "unsubscribe linux-usb" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at  http://vger.kernel.org/majordomo-info.html




[Index of Archives]     [Linux Media]     [Linux Input]     [Linux Audio Users]     [Yosemite News]     [Linux Kernel]     [Linux SCSI]     [Old Linux USB Devel Archive]

  Powered by Linux