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greybus: es2: Send cport-id in wValue field to usb_control_msg()

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wIndex field has a special meaning, as that can be used by the core to
index into the possible USB interfaces. And that specifically broke with
gbsim, as it has a single USB interface.

Other similar requests (REQUEST_LATENCY_TAG_{EN|DIS}) are already using
wValue field for passing cport-id.

Fix cport_reset() by sending the cport-id in wValue field instead of
wIndex.

Signed-off-by: Viresh Kumar <viresh.kumar@linaro.org>
Tested-by: Fabien Parent <fparent@baylibre.com>
Reviewed-by: Johan Hovold <johan@hovoldconsulting.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@google.com>
This commit is contained in:
Viresh Kumar
2015-11-09 15:05:03 +05:30
committed by Greg Kroah-Hartman
parent f6c6c1388a
commit 69166d2525
1 changed files with 1 additions and 1 deletions
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2
drivers/staging/greybus/es2.c
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@@ -440,7 +440,7 @@ static int cport_reset(struct gb_host_device *hd, u16 cport_id)
retval = usb_control_msg(udev, usb_sndctrlpipe(udev, 0),
REQUEST_RESET_CPORT,
USB_DIR_OUT | USB_TYPE_VENDOR |
USB_RECIP_INTERFACE, 0, cport_id,
USB_RECIP_INTERFACE, cport_id, 0,
NULL, 0, ES2_TIMEOUT);
if (retval < 0) {
dev_err(&udev->dev, "failed to reset cport %hu: %d\n", cport_id,