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    Subject[PATCH 3.19.y-ckt 013/164] qmi_wwan: fix entry for HP lt4112 LTE/HSPA+ Gobi 4G Module
    Date
    3.19.8-ckt11 -stable review patch.  If anyone has any objections, please let me know.

    ------------------

    From: =?UTF-8?q?Bj=C3=B8rn=20Mork?= <bjorn@mork.no>

    [ Upstream commit 70910791731b5956171e1bfcad707766b8e18fee ]

    The lt4112 is a HP branded Huawei me906e modem. Like other Huawei
    modems, it does not have a fixed interface to function mapping.
    Instead it uses a Huawei specific scheme: functions are mapped by
    subclass and protocol.

    However, the HP vendor ID is used for modems from many different
    manufacturers using different schemes, so we cannot apply a generic
    vendor rule like we do for the Huawei vendor ID.

    Replace the previous lt4112 entry pointing to an arbitrary interface
    number with a device specific subclass + protocol match.

    Reported-and-tested-by: Muri Nicanor <muri+libqmi@immerda.ch>
    Tested-by: Martin Hauke <mardnh@gmx.de>
    Fixes: bb2bdeb83fb1 ("qmi_wwan: Add support for HP lt4112 LTE/HSPA+ Gobi 4G Modem")
    Signed-off-by: Bjørn Mork <bjorn@mork.no>
    Signed-off-by: David S. Miller <davem@davemloft.net>
    Signed-off-by: Kamal Mostafa <kamal@canonical.com>
    ---
    drivers/net/usb/qmi_wwan.c | 5 ++++-
    1 file changed, 4 insertions(+), 1 deletion(-)

    diff --git a/drivers/net/usb/qmi_wwan.c b/drivers/net/usb/qmi_wwan.c
    index a33de7c..75aa421 100644
    --- a/drivers/net/usb/qmi_wwan.c
    +++ b/drivers/net/usb/qmi_wwan.c
    @@ -539,6 +539,10 @@ static const struct usb_device_id products[] = {
    USB_CDC_PROTO_NONE),
    .driver_info = (unsigned long)&qmi_wwan_info,
    },
    + { /* HP lt4112 LTE/HSPA+ Gobi 4G Module (Huawei me906e) */
    + USB_DEVICE_AND_INTERFACE_INFO(0x03f0, 0x581d, USB_CLASS_VENDOR_SPEC, 1, 7),
    + .driver_info = (unsigned long)&qmi_wwan_info,
    + },

    /* 3. Combined interface devices matching on interface number */
    {QMI_FIXED_INTF(0x0408, 0xea42, 4)}, /* Yota / Megafon M100-1 */
    @@ -788,7 +792,6 @@ static const struct usb_device_id products[] = {
    {QMI_FIXED_INTF(0x413c, 0x81a4, 8)}, /* Dell Wireless 5570e HSPA+ (42Mbps) Mobile Broadband Card */
    {QMI_FIXED_INTF(0x413c, 0x81a8, 8)}, /* Dell Wireless 5808 Gobi(TM) 4G LTE Mobile Broadband Card */
    {QMI_FIXED_INTF(0x413c, 0x81a9, 8)}, /* Dell Wireless 5808e Gobi(TM) 4G LTE Mobile Broadband Card */
    - {QMI_FIXED_INTF(0x03f0, 0x581d, 4)}, /* HP lt4112 LTE/HSPA+ Gobi 4G Module (Huawei me906e) */

    /* 4. Gobi 1000 devices */
    {QMI_GOBI1K_DEVICE(0x05c6, 0x9212)}, /* Acer Gobi Modem Device */
    --
    1.9.1


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