USB: usbtest: support test device with only one iso-in or iso-out endpoint
It is very common that one altsetting may include only one iso-in or iso-out
single endpoint, especially for high bandwidth endpoint, so support it.
Signed-off-by: Ming Lei <tom.leiming@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
diff --git a/drivers/usb/misc/usbtest.c b/drivers/usb/misc/usbtest.c
index d92b7ec..eef370e 100644
--- a/drivers/usb/misc/usbtest.c
+++ b/drivers/usb/misc/usbtest.c
@@ -136,7 +136,7 @@
iso_out = e;
}
}
- if ((in && out) || (iso_in && iso_out))
+ if ((in && out) || iso_in || iso_out)
goto found;
}
return -EINVAL;
@@ -162,6 +162,9 @@
dev->in_iso_pipe = usb_rcvisocpipe (udev,
iso_in->desc.bEndpointAddress
& USB_ENDPOINT_NUMBER_MASK);
+ }
+
+ if (iso_out) {
dev->iso_out = &iso_out->desc;
dev->out_iso_pipe = usb_sndisocpipe (udev,
iso_out->desc.bEndpointAddress