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    Subject[PATCH 5.4 046/222] USB: serial: option: add support for Quectel RM500Q in QDL mode
    Date
    From: Reinhard Speyerer <rspmn@arcor.de>

    commit f3eaabbfd093c93d791eb930cc68d9b15246a65e upstream.

    Add support for Quectel RM500Q in QDL mode.

    T: Bus=02 Lev=01 Prnt=01 Port=00 Cnt=01 Dev#= 24 Spd=480 MxCh= 0
    D: Ver= 2.10 Cls=00(>ifc ) Sub=00 Prot=00 MxPS=64 #Cfgs= 1
    P: Vendor=2c7c ProdID=0800 Rev= 0.00
    S: Manufacturer=Qualcomm CDMA Technologies MSM
    S: Product=QUSB_BULK_SN:xxxxxxxx
    S: SerialNumber=xxxxxxxx
    C:* #Ifs= 1 Cfg#= 1 Atr=a0 MxPwr= 2mA
    I:* If#= 0 Alt= 0 #EPs= 2 Cls=ff(vend.) Sub=ff Prot=10 Driver=option
    E: Ad=81(I) Atr=02(Bulk) MxPS= 512 Ivl=0ms
    E: Ad=01(O) Atr=02(Bulk) MxPS= 512 Ivl=0ms

    It is assumed that the ZLP flag required for other Qualcomm-based
    5G devices also applies to Quectel RM500Q.

    Signed-off-by: Reinhard Speyerer <rspmn@arcor.de>
    Cc: stable <stable@vger.kernel.org>
    Signed-off-by: Johan Hovold <johan@kernel.org>
    Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

    ---
    drivers/usb/serial/option.c | 2 ++
    1 file changed, 2 insertions(+)

    --- a/drivers/usb/serial/option.c
    +++ b/drivers/usb/serial/option.c
    @@ -1107,6 +1107,8 @@ static const struct usb_device_id option
    { USB_DEVICE_AND_INTERFACE_INFO(QUECTEL_VENDOR_ID, QUECTEL_PRODUCT_EM12, 0xff, 0, 0) },
    { USB_DEVICE_AND_INTERFACE_INFO(QUECTEL_VENDOR_ID, QUECTEL_PRODUCT_RM500Q, 0xff, 0xff, 0x30) },
    { USB_DEVICE_AND_INTERFACE_INFO(QUECTEL_VENDOR_ID, QUECTEL_PRODUCT_RM500Q, 0xff, 0, 0) },
    + { USB_DEVICE_AND_INTERFACE_INFO(QUECTEL_VENDOR_ID, QUECTEL_PRODUCT_RM500Q, 0xff, 0xff, 0x10),
    + .driver_info = ZLP },

    { USB_DEVICE(CMOTECH_VENDOR_ID, CMOTECH_PRODUCT_6001) },
    { USB_DEVICE(CMOTECH_VENDOR_ID, CMOTECH_PRODUCT_CMU_300) },

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