Messages in this thread | | | From | Daniele Palmas <> | Date | Thu, 4 Aug 2022 09:08:24 +0200 | Subject | Re: [PATCH] net: usb: cdc_mbim: adding Microsoft mobile broadband modem |
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Hello Seunghun,
Il giorno mer 3 ago 2022 alle ore 14:56 Seunghun Han <kkamagui@gmail.com> ha scritto: > > Hello Daniele, > > On Wed, Aug 3, 2022 at 7:58 PM Daniele Palmas <dnlplm@gmail.com> wrote: > > > > Just for reference, are you allowed to disclose which chipsets these > > modems are based on? > > > > Thanks, > > Daniele > > I'm not sure which chipsets are used for them. In the Windows > environment, the information that I could find was Microsoft Surface > Mobile Broadband Modem. Some people guess they are based on Qualcomm > Snapdragon X16 and successors, but I could find no evidence about > them. > > If you know the way, would you tell me how I can find or confirm it? >
Unfortunately I'm not aware of any specific place for that: I wrongly thought that you were involved in the development of the modem and you knew the chipset.
However, sometimes the name of the chipset is left in the firmware revision: you can try looking if there's any hint in the output of the device caps request. If it's a Qualcomm modem it should probably also support QMI-over-MBIM service, so maybe you can also try a few DMS requests (--dms-get-software-version, --dms-get-revision...).
Sometimes also the USB descriptors can be useful.
Regards, Daniele
> Best regards, > Seunghun
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