linux-kernel - Re: [PATCH v2] USB: serial: option: add MeiG Smart SLM828

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Message-ID: <Z6tb7us7t7CmK-zV@hovoldconsulting.com>
Date: Tue, 11 Feb 2025 15:17:18 +0100
From: Johan Hovold <johan@...nel.org>
To: chester.a.unal@...nc9.com
Cc: Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
	linux-usb@...r.kernel.org, linux-kernel@...r.kernel.org,
	dwayne Du Preez <dwayne.dupreez@...dite-tech.com>,
	Alexander Scholten <alexander.scholten@...dite-tech.com>,
	Zenon van Deventer <zenon@...dite-tech.com>
Subject: Re: [PATCH v2] USB: serial: option: add MeiG Smart SLM828

On Fri, Jan 24, 2025 at 10:28:00AM +0000, Chester A. Unal via B4 Relay wrote:
> From: "Chester A. Unal" <chester.a.unal@...nc9.com>
> 
> MeiG Smart SLM828 is an LTE-A CAT6 modem with the mPCIe form factor. The
> "Cls=ff(vend.) Sub=10 Prot=02" and "Cls=ff(vend.) Sub=10 Prot=03"
> interfaces respond to AT commands. Add these interfaces.
> 
> The product ID the modem uses is shared across multiple modems. Therefore,
> add comments to describe which interface is used for which modem.
> 
> T:  Bus=01 Lev=01 Prnt=05 Port=01 Cnt=01 Dev#=  6 Spd=480  MxCh= 0
> D:  Ver= 2.10 Cls=00(>ifc ) Sub=00 Prot=00 MxPS=64 #Cfgs=  1
> P:  Vendor=2dee ProdID=4d22 Rev=05.04
> S:  Manufacturer=MEIG
> S:  Product=LTE-A Module
> S:  SerialNumber=4da7ec42
> C:  #Ifs= 6 Cfg#= 1 Atr=80 MxPwr=500mA
> I:  If#= 0 Alt= 0 #EPs= 2 Cls=ff(vend.) Sub=10 Prot=01 Driver=(none)
> E:  Ad=01(O) Atr=02(Bulk) MxPS= 512 Ivl=0ms
> E:  Ad=81(I) Atr=02(Bulk) MxPS= 512 Ivl=0ms
> I:  If#= 1 Alt= 0 #EPs= 3 Cls=ff(vend.) Sub=10 Prot=02 Driver=(none)
> E:  Ad=02(O) Atr=02(Bulk) MxPS= 512 Ivl=0ms
> E:  Ad=82(I) Atr=02(Bulk) MxPS= 512 Ivl=0ms
> E:  Ad=83(I) Atr=03(Int.) MxPS=  10 Ivl=32ms
> I:  If#= 2 Alt= 0 #EPs= 3 Cls=ff(vend.) Sub=10 Prot=03 Driver=(none)
> E:  Ad=03(O) Atr=02(Bulk) MxPS= 512 Ivl=0ms
> E:  Ad=84(I) Atr=02(Bulk) MxPS= 512 Ivl=0ms
> E:  Ad=85(I) Atr=03(Int.) MxPS=  10 Ivl=32ms
> I:  If#= 3 Alt= 0 #EPs= 3 Cls=ff(vend.) Sub=10 Prot=04 Driver=(none)
> E:  Ad=04(O) Atr=02(Bulk) MxPS= 512 Ivl=0ms
> E:  Ad=86(I) Atr=02(Bulk) MxPS= 512 Ivl=0ms
> E:  Ad=87(I) Atr=03(Int.) MxPS=  10 Ivl=32ms
> I:  If#= 4 Alt= 0 #EPs= 1 Cls=ff(vend.) Sub=ff Prot=ff Driver=(none)
> E:  Ad=88(I) Atr=03(Int.) MxPS=  64 Ivl=32ms
> I:  If#= 5 Alt= 0 #EPs= 3 Cls=ff(vend.) Sub=10 Prot=05 Driver=qmi_wwan
> E:  Ad=0f(O) Atr=02(Bulk) MxPS= 512 Ivl=0ms
> E:  Ad=89(I) Atr=03(Int.) MxPS=   8 Ivl=32ms
> E:  Ad=8e(I) Atr=02(Bulk) MxPS= 512 Ivl=0ms
> 
> Signed-off-by: Chester A. Unal <chester.a.unal@...nc9.com>

> Changes in v2:
> - Add to the relevant comment that SLM828 is based on Qualcomm SDX12.
> - Add to the comment for certain interface specification that SRM815
>   uses that interface specificiation as well.
> - Link to v1: https://lore.kernel.org/r/20250123-for-johan-meig-slm828-v1-1-6456996e94a5@arinc9.com
 
>  /* MeiG Smart Technology products */
>  #define MEIGSMART_VENDOR_ID			0x2dee
> -/* MeiG Smart SRM815/SRM825L based on Qualcomm 315 */
> +/* MeiG Smart SLM828, SRM815, and SRM825L use the same product ID. SLM828 is
> + * based on Qualcomm SDX12. SRM815 and SRM825L are based on Qualcomm 315.
> + */

Thanks for the patch and for documenting how these entries are related
(here and below).

I fixed up the multi-line comment above to follow the usual style:

	/*
	 * ...
	 */

when applying.

Johan