netdev - Re: [PATCH] qmi_wwan: fix interface number for DW5821e production firmware

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Message-ID: <F97B970A-D83C-43AA-9EEA-EEB797C541FC@mork.no>
Date:   Tue, 24 Jul 2018 10:16:20 +0200
From:   Bjørn Mork <bjorn@...k.no>
To:     Aleksander Morgado <aleksander@...ksander.es>
CC:     davem@...emloft.net, netdev@...r.kernel.org,
        linux-usb@...r.kernel.org, stable <stable@...r.kernel.org>
Subject: Re: [PATCH] qmi_wwan: fix interface number for DW5821e production firmware



On July 24, 2018 1:31:07 AM GMT+02:00, Aleksander Morgado <aleksander@...ksander.es> wrote:
>The original mapping for the DW5821e was done using a development
>version of the firmware. Confirmed with the vendor that the final
>USB layout ends up exposing the QMI control/data ports in USB
>config #1, interface #0, not in interface #1 (which is now a HID
>interface).
>
>T:  Bus=01 Lev=03 Prnt=04 Port=00 Cnt=01 Dev#= 16 Spd=480 MxCh= 0
>D:  Ver= 2.10 Cls=ef(misc ) Sub=02 Prot=01 MxPS=64 #Cfgs=  2
>P:  Vendor=413c ProdID=81d7 Rev=03.18
>S:  Manufacturer=DELL
>S:  Product=DW5821e Snapdragon X20 LTE
>S:  SerialNumber=0123456789ABCDEF
>C:  #Ifs= 6 Cfg#= 1 Atr=a0 MxPwr=500mA
>I:  If#= 0 Alt= 0 #EPs= 3 Cls=ff(vend.) Sub=ff Prot=ff Driver=qmi_wwan
>I:  If#= 1 Alt= 0 #EPs= 1 Cls=03(HID  ) Sub=00 Prot=00 Driver=usbhid
>I:  If#= 2 Alt= 0 #EPs= 3 Cls=ff(vend.) Sub=00 Prot=00 Driver=option
>I:  If#= 3 Alt= 0 #EPs= 3 Cls=ff(vend.) Sub=00 Prot=00 Driver=option
>I:  If#= 4 Alt= 0 #EPs= 3 Cls=ff(vend.) Sub=00 Prot=00 Driver=option
>I:  If#= 5 Alt= 0 #EPs= 2 Cls=ff(vend.) Sub=ff Prot=ff Driver=option
>
>Fixes: e7e197edd09c25 ("qmi_wwan: add support for the Dell Wireless
>5821e module")
>Signed-off-by: Aleksander Morgado <aleksander@...ksander.es>
>Cc: stable <stable@...r.kernel.org>

Acked-by: Bjørn Mork <bjorn@...k.no>