diff options
Diffstat (limited to 'drivers/usb')
| -rw-r--r-- | drivers/usb/serial/qcserial.c | 31 |
1 files changed, 30 insertions, 1 deletions
diff --git a/drivers/usb/serial/qcserial.c b/drivers/usb/serial/qcserial.c index 2846ad8883a..8858201eb1d 100644 --- a/drivers/usb/serial/qcserial.c +++ b/drivers/usb/serial/qcserial.c @@ -152,7 +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) { @@ -163,6 +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; |