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path: root/drivers/usb/serial/qcserial.c
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Diffstat (limited to 'drivers/usb/serial/qcserial.c')
-rw-r--r--drivers/usb/serial/qcserial.c33
1 files changed, 32 insertions, 1 deletions
diff --git a/drivers/usb/serial/qcserial.c b/drivers/usb/serial/qcserial.c
index cde67cacb2c..8858201eb1d 100644
--- a/drivers/usb/serial/qcserial.c
+++ b/drivers/usb/serial/qcserial.c
@@ -118,6 +118,8 @@ static int qcprobe(struct usb_serial *serial, const struct usb_device_id *id)
spin_lock_init(&data->susp_lock);
+ usb_enable_autosuspend(serial->dev);
+
switch (nintf) {
case 1:
/* QDL mode */
@@ -150,7 +152,22 @@ static int qcprobe(struct usb_serial *serial, const struct usb_device_id *id)
case 3:
case 4:
/* Composite mode */
- if (ifnum == 2) {
+ /* ifnum == 0 is a broadband network adapter */
+ if (ifnum == 1) {
+ /*
+ * Diagnostics Monitor (serial line 9600 8N1)
+ * Qualcomm DM protocol
+ * use "libqcdm" (ModemManager) for communication
+ */
+ dbg("Diagnostics Monitor found");
+ retval = usb_set_interface(serial->dev, ifnum, 0);
+ if (retval < 0) {
+ dev_err(&serial->dev->dev,
+ "Could not set interface, error %d\n",
+ retval);
+ retval = -ENODEV;
+ }
+ } else if (ifnum == 2) {
dbg("Modem port found");
retval = usb_set_interface(serial->dev, ifnum, 0);
if (retval < 0) {
@@ -161,6 +178,20 @@ static int qcprobe(struct usb_serial *serial, const struct usb_device_id *id)
kfree(data);
}
return retval;
+ } else if (ifnum==3) {
+ /*
+ * NMEA (serial line 9600 8N1)
+ * # echo "\$GPS_START" > /dev/ttyUSBx
+ * # echo "\$GPS_STOP" > /dev/ttyUSBx
+ */
+ dbg("NMEA GPS interface found");
+ retval = usb_set_interface(serial->dev, ifnum, 0);
+ if (retval < 0) {
+ dev_err(&serial->dev->dev,
+ "Could not set interface, error %d\n",
+ retval);
+ retval = -ENODEV;
+ }
}
break;