linux-kernel - Re:Re: [PATCH] USB: serial: option: add support for Cinterion MV31 with new baseline

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Date:   Fri, 10 Jun 2022 11:35:42 +0800 (CST)
From:   "Slark Xiao" <slark_xiao@....com>
To:     "Johan Hovold" <johan@...nel.org>
Cc:     gregkh@...uxfoundation.org, linux-usb@...r.kernel.org,
        linux-kernel@...r.kernel.org
Subject: Re:Re: [PATCH] USB: serial: option: add support for Cinterion MV31
 with new baseline



At 2022-06-09 20:36:04, "Johan Hovold" <johan@...nel.org> wrote:
>On Wed, Jun 01, 2022 at 11:47:40AM +0800, Slark Xiao wrote:
>> Adding support for Cinterion device MV31 with Qualcomm
>> new baseline. Use different PIDs to separate it from
>> previous base line products.
>> All interfaces settings keep same as previous.
>> 
>> Below is test evidence:
>> T:  Bus=03 Lev=01 Prnt=01 Port=00 Cnt=01 Dev#=  6 Spd=480 MxCh= 0
>> D:  Ver= 2.10 Cls=ef(misc ) Sub=02 Prot=01 MxPS=64 #Cfgs=  1
>> P:  Vendor=1e2d ProdID=00b8 Rev=04.14
>> S:  Manufacturer=Cinterion
>> S:  Product=Cinterion PID 0x00B8 USB Mobile Broadband
>> S:  SerialNumber=90418e79
>> C:  #Ifs= 6 Cfg#= 1 Atr=a0 MxPwr=500mA
>> I:  If#=0x0 Alt= 0 #EPs= 1 Cls=02(commc) Sub=0e Prot=00 Driver=cdc_mbim
>> I:  If#=0x1 Alt= 1 #EPs= 2 Cls=0a(data ) Sub=00 Prot=02 Driver=cdc_mbim
>> I:  If#=0x2 Alt= 0 #EPs= 3 Cls=ff(vend.) Sub=ff Prot=40 Driver=option
>> I:  If#=0x3 Alt= 0 #EPs= 1 Cls=ff(vend.) Sub=ff Prot=ff Driver=(none)
>> I:  If#=0x4 Alt= 0 #EPs= 3 Cls=ff(vend.) Sub=ff Prot=60 Driver=option
>> I:  If#=0x5 Alt= 0 #EPs= 2 Cls=ff(vend.) Sub=ff Prot=30 Driver=option
>> 
>> T:  Bus=03 Lev=01 Prnt=01 Port=00 Cnt=01 Dev#=  7 Spd=480 MxCh= 0
>> D:  Ver= 2.10 Cls=ef(misc ) Sub=02 Prot=01 MxPS=64 #Cfgs=  1
>> P:  Vendor=1e2d ProdID=00b9 Rev=04.14
>> S:  Manufacturer=Cinterion
>> S:  Product=Cinterion PID 0x00B9 USB Mobile Broadband
>> S:  SerialNumber=90418e79
>> C:  #Ifs= 4 Cfg#= 1 Atr=a0 MxPwr=500mA
>> I:  If#=0x0 Alt= 0 #EPs= 3 Cls=ff(vend.) Sub=ff Prot=50 Driver=qmi_wwan
>> I:  If#=0x1 Alt= 0 #EPs= 3 Cls=ff(vend.) Sub=ff Prot=40 Driver=option
>> I:  If#=0x2 Alt= 0 #EPs= 3 Cls=ff(vend.) Sub=ff Prot=60 Driver=option
>> I:  If#=0x3 Alt= 0 #EPs= 2 Cls=ff(vend.) Sub=ff Prot=30 Driver=option
>> 
>> For PID 00b8, interface 3 is GNSS port which don't use serial driver.
>> 
>> Signed-off-by: Slark Xiao <slark_xiao@....com>
>> ---
>>  drivers/usb/serial/option.c | 6 ++++++
>>  1 file changed, 6 insertions(+)
>> 
>> diff --git a/drivers/usb/serial/option.c b/drivers/usb/serial/option.c
>> index e60425bbf537..5e26e90db7d6 100644
>> --- a/drivers/usb/serial/option.c
>> +++ b/drivers/usb/serial/option.c
>> @@ -432,6 +432,8 @@ static void option_instat_callback(struct urb *urb);
>>  #define CINTERION_PRODUCT_CLS8			0x00b0
>>  #define CINTERION_PRODUCT_MV31_MBIM		0x00b3
>>  #define CINTERION_PRODUCT_MV31_RMNET		0x00b7
>> +#define CINTERION_PRODUCT_MV31_MBIM2		0x00b8
>> +#define CINTERION_PRODUCT_MV31_RMNET2		0x00b9
>
>Thanks for the patch. I've applied it now after renaming the defines to
>make the variant an infix instead (e.g. CINTERION_PRODUCT_MV31_2_MBIM).
>
Thanks for this little change.

>>  #define CINTERION_PRODUCT_MV32_WA		0x00f1
>>  #define CINTERION_PRODUCT_MV32_WB		0x00f2
>>  
>> @@ -1979,6 +1981,10 @@ static const struct usb_device_id option_ids[] = {
>>  	  .driver_info = RSVD(3)},
>>  	{ USB_DEVICE_INTERFACE_CLASS(CINTERION_VENDOR_ID, CINTERION_PRODUCT_MV31_RMNET, 0xff),
>>  	  .driver_info = RSVD(0)},
>> +	{ USB_DEVICE_INTERFACE_CLASS(CINTERION_VENDOR_ID, CINTERION_PRODUCT_MV31_MBIM2, 0xff),
>> +	  .driver_info = RSVD(3)},
>> +	{ USB_DEVICE_INTERFACE_CLASS(CINTERION_VENDOR_ID, CINTERION_PRODUCT_MV31_RMNET2, 0xff),
>> +	  .driver_info = RSVD(0)},
>>  	{ USB_DEVICE_INTERFACE_CLASS(CINTERION_VENDOR_ID, CINTERION_PRODUCT_MV32_WA, 0xff),
>>  	  .driver_info = RSVD(3)},
>>  	{ USB_DEVICE_INTERFACE_CLASS(CINTERION_VENDOR_ID, CINTERION_PRODUCT_MV32_WB, 0xff),
>
>Johan