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

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Date:   Tue, 24 Jul 2018 16:37:37 -0700 (PDT)
From:   David Miller <davem@...emloft.net>
To:     aleksander@...ksander.es
Cc:     bjorn@...k.no, netdev@...r.kernel.org, linux-usb@...r.kernel.org,
        stable@...r.kernel.org
Subject: Re: [PATCH] qmi_wwan: fix interface number for DW5821e production
 firmware

From: Aleksander Morgado <aleksander@...ksander.es>
Date: Tue, 24 Jul 2018 01:31:07 +0200

> 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>

Applied and queued up for -stable, thank you.