hi, this is what i've done... 1. i found 3 endpoints on interface 0. 2. # echo 1-1.2:1.0 > /sys/bus/usbl/drivers/option/unbind 3. # modprobe qmi_wwan 4. echo "19d2 fff1" > /sys/bus/usb/drivers/qmi_wwan/new_id 5. installed libqmi-utils
i didnt find /dev/cdc-wdmX device ! what should i do now? Thanks! On Wed, Jul 3, 2013 at 7:39 PM, Bjørn Mork <bj...@mork.no> wrote: > satya gowtham kudupudi <satyagowtha...@gmail.com> writes: > > > > /sys/devices/pci0000:00/0000:00:1d.0/usb2/2-1/2-1.2/2-1.2:1.0/ttyUSB0/tty/ttyUSB0/dev > > > /sys/devices/pci0000:00/0000:00:1d.0/usb2/2-1/2-1.2/2-1.2:1.1/ttyUSB1/tty/ttyUSB1/dev > > > /sys/devices/pci0000:00/0000:00:1d.0/usb2/2-1/2-1.2/2-1.2:1.2/ttyUSB2/tty/ttyUSB2/dev > > > /sys/devices/pci0000:00/0000:00:1d.0/usb2/2-1/2-1.2/2-1.2:1.3/ttyUSB3/tty/ttyUSB3/dev > > > /sys/devices/pci0000:00/0000:00:1d.0/usb2/2-1/2-1.2/2-1.2:1.4/ttyUSB4/tty/ttyUSB4/dev > > > /sys/devices/pci0000:00/0000:00:1d.0/usb2/2-1/2-1.2/2-1.2:1.5/host5/target5:0:0/5:0:0:0/bsg/5:0:0:0/dev > > > /sys/devices/pci0000:00/0000:00:1d.0/usb2/2-1/2-1.2/2-1.2:1.5/host5/target5:0:0/5:0:0:0/block/sdb/dev > > > /sys/devices/pci0000:00/0000:00:1d.0/usb2/2-1/2-1.2/2-1.2:1.5/host5/target5:0:0/5:0:0:0/scsi_generic/sg1/dev > > > > this is sys tree i get when i plug in my modem. With this can u say > whether > > my modem is QMI capable? > > No, I cannot. But I can say that it doesn't match the Gobi1k or Gobi2k > layouts. > > > How to add VID/PID pair to the kernel driver and recompile it? > > You don't need to do that just to test. A QMI function needs 3 > endpoints, so first try to find out if any of the unknown USB interfaces > have 3. "lsusb -vd 19d1:fff1" will tell you this. > > For example: > > Interface Descriptor: > bLength 9 > bDescriptorType 4 > bInterfaceNumber 3 > bAlternateSetting 0 > bNumEndpoints 3 > bInterfaceClass 255 Vendor Specific Class > bInterfaceSubClass 255 Vendor Specific Subclass > bInterfaceProtocol 255 Vendor Specific Protocol > iInterface 0 > > means that interface #3 has 3 endpoints and is a suspect. Then unbind > this interface from the option driver and dynamically add the device ID > to qmi_wwan: > > echo 2-1.2:1.3 >/sys/bus/usb-serial/drivers/option1/unbind > modprobe qmi_wwan > echo 19d1 fff1 >/sys/bus/usb/drivers/qmi_wwan/new_id > > > This should make qmi_wwan bind to interface #3 instead of option. You > can now use libqmi tools to probe the /dev/cdc-wdmX device. Or let MM > probe it if you built MM with QMI support. > > Repeat for every unknown (i.e not successfully probed by MM) interface > with 3 endpoints. > > > Bjørn > -- *- Gowtham*
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