commit: 3f8bc5e4da29c7e05edeca6b475abb4fb01a5a13
From: Dan Williams <dcbw@xxxxxxxxxx>
Date: Wed, 13 Mar 2013 09:58:18 -0500
Subject: qcserial: bind to DM/DIAG port on Gobi 1K devices
Turns out we just need altsetting 1 and then we can talk to it.
Signed-off-by: Dan Williams <dcbw@xxxxxxxxxx>
Cc: stable <stable@xxxxxxxxxxxxxxx>
Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>
---
drivers/usb/serial/qcserial.c | 7 +++++--
1 file changed, 5 insertions(+), 2 deletions(-)
diff --git a/drivers/usb/serial/qcserial.c b/drivers/usb/serial/qcserial.c
index 2466254..59b32b7 100644
--- a/drivers/usb/serial/qcserial.c
+++ b/drivers/usb/serial/qcserial.c
@@ -197,12 +197,15 @@ static int qcprobe(struct usb_serial *serial, const struct usb_device_id *id)
if (is_gobi1k) {
/* Gobi 1K USB layout:
- * 0: serial port (doesn't respond)
+ * 0: DM/DIAG (use libqcdm from ModemManager for communication)
* 1: serial port (doesn't respond)
* 2: AT-capable modem port
* 3: QMI/net
*/
- if (ifnum == 2)
+ if (ifnum == 0) {
+ dev_dbg(dev, "Gobi 1K DM/DIAG interface found\n");
+ altsetting = 1;
+ } else if (ifnum == 2)
dev_dbg(dev, "Modem port found\n");
else
altsetting = -1;
--
1.7.10.4
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