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USB: qcserial: support generic Qualcomm serial ports 

No need to verify the interface layout when doing
interface number based matching.  We can safely trust
the device ID table in this case.

This allows the driver to support any USB interface
layout for non-Gobi 1k/2k+ devices.

Signed-off-by: Bjørn Mork <bjorn@mork.no>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
hifive-unleashed-5.1
Bjørn Mork 2012-07-15 16:47:39 +02:00 committed by Greg Kroah-Hartman
parent 0dfbf65eb0
commit e7ad21e00e
1 changed files with 7 additions and 0 deletions
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7
drivers/usb/serial/qcserial.c
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@ -165,6 +165,13 @@ static int qcprobe(struct usb_serial *serial, const struct usb_device_id *id)
}
/* allow any number of interfaces when doing direct interface match */
if (id->match_flags & USB_DEVICE_ID_MATCH_INT_NUMBER) {
dev_dbg(dev, "Generic Qualcomm serial interface found\n");
altsetting = 0;
goto done;
}
if (nintf < 3 || nintf > 4) {
dev_err(dev, "unknown number of interfaces: %d\n", nintf);
goto done;