linux-kernel - Re: [PATCH 1/3] USB: serial: option: add support for ASKEY WWHC050

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Date:   Tue, 24 Mar 2020 10:22:25 +0100
From:   Johan Hovold <johan@...nel.org>
To:     Pawel Dembicki <paweldembicki@...il.com>
Cc:     Cezary Jackiewicz <cezary@....one.pl>,
        Johan Hovold <johan@...nel.org>,
        Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        linux-usb@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH 1/3] USB: serial: option: add support for ASKEY WWHC050

On Fri, Mar 20, 2020 at 11:01:52PM +0100, Pawel Dembicki wrote:
> ASKEY WWHC050 is a mcie LTE modem.
> The oem configuration states:
> 
> T:  Bus=01 Lev=01 Prnt=01 Port=00 Cnt=01 Dev#=  2 Spd=480  MxCh= 0
> D:  Ver= 2.10 Cls=00(>ifc ) Sub=00 Prot=00 MxPS=64 #Cfgs=  1
> P:  Vendor=1690 ProdID=7588 Rev=ff.ff
> S:  Manufacturer=Android
> S:  Product=Android
> S:  SerialNumber=813f0eef6e6e
> C:* #Ifs= 6 Cfg#= 1 Atr=80 MxPwr=500mA
> I:* If#= 0 Alt= 0 #EPs= 2 Cls=ff(vend.) Sub=ff Prot=ff Driver=option
> E:  Ad=81(I) Atr=02(Bulk) MxPS= 512 Ivl=0ms
> E:  Ad=01(O) Atr=02(Bulk) MxPS= 512 Ivl=0ms
> I:* If#= 1 Alt= 0 #EPs= 2 Cls=ff(vend.) Sub=42 Prot=01 Driver=(none)
> E:  Ad=02(O) Atr=02(Bulk) MxPS= 512 Ivl=0ms
> E:  Ad=82(I) Atr=02(Bulk) MxPS= 512 Ivl=0ms
> I:* If#= 2 Alt= 0 #EPs= 3 Cls=ff(vend.) Sub=00 Prot=00 Driver=option
> E:  Ad=84(I) Atr=03(Int.) MxPS=  10 Ivl=32ms
> E:  Ad=83(I) Atr=02(Bulk) MxPS= 512 Ivl=0ms
> E:  Ad=03(O) Atr=02(Bulk) MxPS= 512 Ivl=0ms
> I:* If#= 3 Alt= 0 #EPs= 3 Cls=ff(vend.) Sub=00 Prot=00 Driver=option
> E:  Ad=86(I) Atr=03(Int.) MxPS=  10 Ivl=32ms
> E:  Ad=85(I) Atr=02(Bulk) MxPS= 512 Ivl=0ms
> E:  Ad=04(O) Atr=02(Bulk) MxPS= 512 Ivl=0ms
> I:* If#= 4 Alt= 0 #EPs= 3 Cls=ff(vend.) Sub=ff Prot=ff Driver=qmi_wwan
> E:  Ad=88(I) Atr=03(Int.) MxPS=   8 Ivl=32ms
> E:  Ad=87(I) Atr=02(Bulk) MxPS= 512 Ivl=0ms
> E:  Ad=05(O) Atr=02(Bulk) MxPS= 512 Ivl=0ms
> I:* If#= 5 Alt= 0 #EPs= 2 Cls=08(stor.) Sub=06 Prot=50 Driver=(none)
> E:  Ad=89(I) Atr=02(Bulk) MxPS= 512 Ivl=0ms
> E:  Ad=06(O) Atr=02(Bulk) MxPS= 512 Ivl=125us
> 
> Tested on openwrt distribution.
> 
> Signed-off-by: Cezary Jackiewicz <cezary@....one.pl>
> Signed-off-by: Pawel Dembicki <paweldembicki@...il.com>

Thanks for the patches, looks good.

But who is really the author of patches 1 and 2? You or Cezary? In the
first case, you can use the Co-Developed-By tag to give Cezary credit,
and otherwise you need to add a From line so that authorship is recorded
correctly.

Take a look at Documentation/process/submitting-patches.rst.

> ---
>  drivers/usb/serial/option.c | 2 ++
>  1 file changed, 2 insertions(+)
> 
> diff --git a/drivers/usb/serial/option.c b/drivers/usb/serial/option.c
> index 0b5dcf973d94..2f17019d3810 100644
> --- a/drivers/usb/serial/option.c
> +++ b/drivers/usb/serial/option.c
> @@ -2018,6 +2018,8 @@ static const struct usb_device_id option_ids[] = {
>  	  .driver_info = RSVD(4) | RSVD(5) },
>  	{ USB_DEVICE_INTERFACE_CLASS(0x2cb7, 0x0105, 0xff),			/* Fibocom NL678 series */
>  	  .driver_info = RSVD(6) },
> +	{ USB_DEVICE_INTERFACE_CLASS(0x1690, 0x7588, 0xff),			/* ASKEY WWHC050 */
> +	  .driver_info = RSVD(1) | RSVD(4) },

I know the entries here appear to be in mostly random order, but if
you're adding numerical ids towards the end, perhaps you can try to
insert them in order.

>  	{ } /* Terminating entry */
>  };
>  MODULE_DEVICE_TABLE(usb, option_ids);

Johan