linux-kernel - Re:Re: Re: Re: Re: [PATCH] [V2,1/1]USB: serial: option: add Foxconn T77W175 composition 0x901d

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Message-ID: <31fcfd4a.2432.17b52e12d52.Coremail.slark_xiao@163.com>
Date:   Tue, 17 Aug 2021 14:51:34 +0800 (CST)
From:   "Slark Xiao" <slark_xiao@....com>
To:     "Greg KH" <gregkh@...uxfoundation.org>
Cc:     "Reinhard Speyerer" <rspmn@...or.de>, johan@...nel.org,
        linux-usb@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: Re:Re: Re: Re: Re: [PATCH] [V2,1/1]USB: serial: option: add Foxconn
 T77W175 composition 0x901d

















At 2021-08-17 14:33:48, "Greg KH" <gregkh@...uxfoundation.org> wrote:
>On Tue, Aug 17, 2021 at 10:27:05AM +0800, Slark Xiao wrote:
>> 
>> 
>
><blank lines snipped, please fix your email client...>
>
>>> At 2021-08-16 19:17:11, "Greg KH" <gregkh@...uxfoundation.org> wrote:
>> >On Mon, Aug 16, 2021 at 05:25:20PM +0800, Slark Xiao wrote:
>> >> At 2021-08-16 17:20:59, "Greg KH" <gregkh@...uxfoundation.org> wrote:
>> >> >On Mon, Aug 16, 2021 at 05:17:00PM +0800, Slark Xiao wrote:
>> >> >>   So should I use USB_DEVICE_INTERFACE_NUMBER(QUALCOMM_VENDOR_ID, 0x901d, 0x00) to bind Diag port only?
>> >> >
>> >> >Why is this device using the QUALCOMM vendor id anyway?  Is this allowed
>> >> >by Qualcomm?
>> >> >
>> >> >thanks,
>> >> >
>> >> >greg k-h
>> >> 
>> >> Hi Greg,
>> >>   Our product are designed based on Qualcomm SDX55 platform. So it still support Qualcomm vendor ID.
>> >>   I think there is no infringement about this ID combo.
>> >
>> >Do you have permission from Qualcomm to use their vendor id?  I know
>> >some vendors get very upset about this...
>> >
>> >Why not use your own vendor id?
>> >
>> >thanks,
>> >
>> >greg k-h
>> 
>> Hi Greg,
>>    As Qualcomm mainly provide service to their customer, like Samsung, Apple, Huawei, Quectel, Foxconn, Sierra and so on, so I believe all available VID/PIDs are allowed to use. 
>
>That is not how USB VIDs work, sorry.  Please get approval from the
>company whose VID you wish to use, otherwise they will be using it
>themselves for their own devices, and you will have a collision.
>
>thanks,
>
>greg k-h

Hi Greg,
   I am checking this with Qualcomm side now. I will update the result once I get it.
  Thank you for your advice.