linux-kernel - Re: [net-next,RESEND v6 2/2] net: wwan: t7xx: Add debug port

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Message-Id: <20241023151514.GA888712@bhelgaas>
Date: Thu, 24 Oct 2024 18:07:25 +0800
From: Jinjian Song <jinjian.song@...ocom.com>
To: helgaas@...nel.org
Cc: angelogioacchino.delregno@...labora.com,
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Subject: Re: [net-next,RESEND v6 2/2] net: wwan: t7xx: Add debug port

>On Mon, Oct 21, 2024 at 08:19:34PM +0800, Jinjian Song wrote:
>> From: Jinjian Song <songjinjian@...mail.com>
>> 
>> Add support for userspace to switch on the debug port(ADB,MIPC).
>>  - ADB port: /dev/wwan0adb0
>>  - MIPC port: /dev/wwan0mipc0
>> 
>> Application can use ADB (Android Debg Bridge) port to implement
>> functions (shell, pull, push ...) by ADB protocol commands.
>> E.g., ADB commands:
>>  - A_OPEN: OPEN(local-id, 0, "destination")
>>  - A_WRTE: WRITE(local-id, remote-id, "data")
>>  - A_OKEY: READY(local-id, remote-id, "")
>>  - A_CLSE: CLOSE(local-id, remote-id, "")
>
>s/Debg/Debug/

Got it, thanks.

>> Link: https://android.googlesource.com/platform/packages/modules/adb/+/refs/heads/main/README.md
>> 
>> Application can use MIPC (Modem Information Process Center) port
>> to debug antenna tunner or noise profiling through this MTK modem
>> diagnostic interface.
>
>s/tunner/tuner/

Got it, thanks.

>> +++ b/Documentation/networking/device_drivers/wwan/t7xx.rst
>> @@ -67,6 +67,28 @@ Write from userspace to set the device mode.
>>  ::
>>    $ echo fastboot_switching > /sys/bus/pci/devices/${bdf}/t7xx_mode
>>  
>> +t7xx_port_mode
>> +--------------
>> +The sysfs interface provides userspace with access to the port mode, this interface
>> +supports read and write operations.
>
>This file is not completely consistent, but 90% of it fits in 80
>columns, so I would make your additions fit also.
>

Please let me change this file.

Best Regards,
Jinjian