linux-kernel - Re: [PATCH] USB: serial: option: add MediaTek T7XX compositions

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Message-ID: <Zyt4I2YFx5lm0cLi@hovoldconsulting.com>
Date: Wed, 6 Nov 2024 15:07:31 +0100
From: Johan Hovold <johan@...nel.org>
To: 吳逼逼 <wojackbb@...il.com>
Cc: gregkh@...uxfoundation.org, linux-usb@...r.kernel.org,
	linux-kernel@...r.kernel.org
Subject: Re: [PATCH] USB: serial: option: add MediaTek T7XX compositions

[ Please avoid top-posting. ]

On Wed, Nov 06, 2024 at 07:09:22PM +0800, 吳逼逼 wrote:
> I:* If#= 2 Alt= 0 #EPs= 2 Cls=ff(vend.) Sub=00 Prot=00 Driver=option
> E:  Ad=83(I) Atr=02(Bulk) MxPS= 512 Ivl=0ms
> E:  Ad=02(O) Atr=02(Bulk) MxPS= 512 Ivl=0ms
> It is USB AP Log Port.
> 
> I:* If#= 3 Alt= 0 #EPs= 2 Cls=ff(vend.) Sub=00 Prot=00 Driver=option
> E:  Ad=84(I) Atr=02(Bulk) MxPS= 512 Ivl=0ms
> E:  Ad=03(O) Atr=02(Bulk) MxPS= 512 Ivl=0ms
> It is USB AP GNSS Port.
> 
> I:* If#= 4 Alt= 0 #EPs= 2 Cls=ff(vend.) Sub=00 Prot=00 Driver=option
> E:  Ad=85(I) Atr=02(Bulk) MxPS= 512 Ivl=0ms
> E:  Ad=04(O) Atr=02(Bulk) MxPS= 512 Ivl=0ms
> It is USB AP META Port.
> 
> I:* If#= 5 Alt= 0 #EPs= 2 Cls=ff(vend.) Sub=42 Prot=01 Driver=(none)
> E:  Ad=86(I) Atr=02(Bulk) MxPS= 512 Ivl=0ms
> E:  Ad=05(O) Atr=02(Bulk) MxPS= 512 Ivl=0ms
> It is ADB port.
> 
> I:* If#= 6 Alt= 0 #EPs= 2 Cls=ff(vend.) Sub=00 Prot=00 Driver=option
> E:  Ad=87(I) Atr=02(Bulk) MxPS= 512 Ivl=0ms
> E:  Ad=06(O) Atr=02(Bulk) MxPS= 512 Ivl=0ms
> It is USB MD AT Port. User can use the port send AT command.
> 
> I:* If#= 7 Alt= 0 #EPs= 2 Cls=ff(vend.) Sub=00 Prot=00 Driver=option
> E:  Ad=88(I) Atr=02(Bulk) MxPS= 512 Ivl=0ms
> E:  Ad=07(O) Atr=02(Bulk) MxPS= 512 Ivl=0ms
> It is USB MD META Port.
> 
> I:* If#= 8 Alt= 0 #EPs= 2 Cls=ff(vend.) Sub=00 Prot=00 Driver=option
> E:  Ad=89(I) Atr=02(Bulk) MxPS= 512 Ivl=0ms
> E:  Ad=08(O) Atr=02(Bulk) MxPS= 512 Ivl=0ms
> It is USB NTZ Port. User can use the port send MIPC command.
> MIPC is an instruction set designed by MTK, similar to QCT's QMI
> 
> I:* If#= 9 Alt= 0 #EPs= 2 Cls=ff(vend.) Sub=00 Prot=00 Driver=option
> E:  Ad=8a(I) Atr=02(Bulk) MxPS= 512 Ivl=0ms
> E:  Ad=09(O) Atr=02(Bulk) MxPS= 512 Ivl=0ms
> It is USB Debug port.

Thanks for this. Please include this in some form in the commit message
(e.g. a table listing the functions).

> Sorry, I don't understand "not accepting modem control".
> Should I set the non-MD ports to true?
> for example: USB AP Log Port.

I meant that you should mark the interfaces that reject modem-control
requests using the NCTRL() macro similar to what was done for the device
with PID 0x7127.

Johan