linux-kernel - Re: [PATCH v2] USB: serial: option: add Fibocom L7xx modules

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Date:   Wed, 22 Nov 2023 09:48:43 +0700
From:   Lars Melin <larsm17@...il.com>
To:     Victor Fragoso <victorffs@...mail.com>,
        "johan@...nel.org" <johan@...nel.org>
Cc:     "gregkh@...uxfoundation.org" <gregkh@...uxfoundation.org>,
        "linux-usb@...r.kernel.org" <linux-usb@...r.kernel.org>,
        "linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH v2] USB: serial: option: add Fibocom L7xx modules

On 11/22/2023 4:05, Victor Fragoso wrote:
> Add support for Fibocom L716-EU module series.
> 
> L716-EU is a Fibocom module based on ZTE's V3E/V3T chipset.
> 
> Device creates multiple interfaces when connected to PC as follows:
>   - Network Interface: ECM or RNDIS (set by FW or AT Command)
>   - ttyUSB0: AT port
>   - ttyUSB1: Modem port
>   - ttyUSB2: AT2 port
>   - ttyUSB3: Trace port for log information
>   - ADB: ADB port for debugging. ("Driver=usbfs" when ADB server enabled)
> 
> Here are the outputs of lsusb and usb-devices:
> $ ls /dev/ttyUSB*
> /dev/ttyUSB0  /dev/ttyUSB1  /dev/ttyUSB2  /dev/ttyUSB3
> 
> usb-devices:
> L716-EU (ECM mode):
> T:  Bus=03 Lev=01 Prnt=01 Port=01 Cnt=01 Dev#= 51 Spd=480  MxCh= 0
> D:  Ver= 2.00 Cls=00(>ifc ) Sub=00 Prot=00 MxPS=64 #Cfgs=  1
> P:  Vendor=2cb7 ProdID=0001 Rev= 1.00
> S:  Manufacturer=Fibocom,Incorporated
> S:  Product=Fibocom Mobile Boardband
> S:  SerialNumber=1234567890ABCDEF
> C:* #Ifs= 7 Cfg#= 1 Atr=e0 MxPwr=500mA
> A:  FirstIf#= 0 IfCount= 2 Cls=02(comm.) Sub=06 Prot=00
> I:* If#= 0 Alt= 0 #EPs= 1 Cls=02(comm.) Sub=06 Prot=00 Driver=cdc_ether
> E:  Ad=87(I) Atr=03(Int.) MxPS=  16 Ivl=32ms
> I:  If#= 1 Alt= 0 #EPs= 0 Cls=0a(data ) Sub=00 Prot=00 Driver=cdc_ether
> I:* If#= 1 Alt= 1 #EPs= 2 Cls=0a(data ) Sub=00 Prot=00 Driver=cdc_ether
> E:  Ad=81(I) Atr=02(Bulk) MxPS= 512 Ivl=0ms
> E:  Ad=01(O) Atr=02(Bulk) MxPS= 512 Ivl=0ms
> I:* If#= 2 Alt= 0 #EPs= 2 Cls=ff(vend.) Sub=ff Prot=ff Driver=option
> E:  Ad=82(I) Atr=02(Bulk) MxPS= 512 Ivl=0ms
> E:  Ad=02(O) Atr=02(Bulk) MxPS= 512 Ivl=0ms
> I:* If#= 3 Alt= 0 #EPs= 2 Cls=ff(vend.) Sub=ff Prot=ff Driver=option
> E:  Ad=83(I) Atr=02(Bulk) MxPS= 512 Ivl=0ms
> E:  Ad=03(O) Atr=02(Bulk) MxPS= 512 Ivl=0ms
> I:* If#= 4 Alt= 0 #EPs= 2 Cls=ff(vend.) Sub=ff Prot=ff Driver=option
> E:  Ad=84(I) Atr=02(Bulk) MxPS= 512 Ivl=0ms
> E:  Ad=04(O) Atr=02(Bulk) MxPS= 512 Ivl=0ms
> I:* If#= 5 Alt= 0 #EPs= 2 Cls=ff(vend.) Sub=ff Prot=ff Driver=option
> E:  Ad=85(I) Atr=02(Bulk) MxPS= 512 Ivl=0ms
> E:  Ad=05(O) Atr=02(Bulk) MxPS= 512 Ivl=0ms
> I:* If#= 6 Alt= 0 #EPs= 2 Cls=ff(vend.) Sub=42 Prot=01 Driver=usbfs
> E:  Ad=86(I) Atr=02(Bulk) MxPS= 512 Ivl=0ms
> E:  Ad=06(O) Atr=02(Bulk) MxPS= 512 Ivl=0ms
> 
> L716-EU (RNDIS mode):
> T:  Bus=03 Lev=01 Prnt=01 Port=01 Cnt=01 Dev#= 49 Spd=480  MxCh= 0
> D:  Ver= 2.00 Cls=00(>ifc ) Sub=00 Prot=00 MxPS=64 #Cfgs=  1
> P:  Vendor=2cb7 ProdID=0001 Rev= 1.00
> S:  Manufacturer=Fibocom,Incorporated
> S:  Product=Fibocom Mobile Boardband
> S:  SerialNumber=1234567890ABCDEF
> C:* #Ifs= 7 Cfg#= 1 Atr=e0 MxPwr=500mA
> A:  FirstIf#= 0 IfCount= 2 Cls=e0(wlcon) Sub=01 Prot=03
> I:* If#= 0 Alt= 0 #EPs= 1 Cls=02(comm.) Sub=02 Prot=ff Driver=rndis_host
> E:  Ad=87(I) Atr=03(Int.) MxPS=   8 Ivl=32ms
> I:* If#= 1 Alt= 0 #EPs= 2 Cls=0a(data ) Sub=00 Prot=00 Driver=rndis_host
> E:  Ad=81(I) Atr=02(Bulk) MxPS= 512 Ivl=0ms
> E:  Ad=01(O) Atr=02(Bulk) MxPS= 512 Ivl=0ms
> I:* If#= 2 Alt= 0 #EPs= 2 Cls=ff(vend.) Sub=ff Prot=ff Driver=option
> E:  Ad=82(I) Atr=02(Bulk) MxPS= 512 Ivl=0ms
> E:  Ad=02(O) Atr=02(Bulk) MxPS= 512 Ivl=0ms
> I:* If#= 3 Alt= 0 #EPs= 2 Cls=ff(vend.) Sub=ff Prot=ff Driver=option
> E:  Ad=83(I) Atr=02(Bulk) MxPS= 512 Ivl=0ms
> E:  Ad=03(O) Atr=02(Bulk) MxPS= 512 Ivl=0ms
> I:* If#= 4 Alt= 0 #EPs= 2 Cls=ff(vend.) Sub=ff Prot=ff Driver=option
> E:  Ad=84(I) Atr=02(Bulk) MxPS= 512 Ivl=0ms
> E:  Ad=04(O) Atr=02(Bulk) MxPS= 512 Ivl=0ms
> I:* If#= 5 Alt= 0 #EPs= 2 Cls=ff(vend.) Sub=ff Prot=ff Driver=option
> E:  Ad=85(I) Atr=02(Bulk) MxPS= 512 Ivl=0ms
> E:  Ad=05(O) Atr=02(Bulk) MxPS= 512 Ivl=0ms
> I:* If#= 6 Alt= 0 #EPs= 2 Cls=ff(vend.) Sub=42 Prot=01 Driver=usbfs
> E:  Ad=86(I) Atr=02(Bulk) MxPS= 512 Ivl=0ms
> E:  Ad=06(O) Atr=02(Bulk) MxPS= 512 Ivl=0ms
> 
> Signed-off-by: Victor Fragoso <victorffs@...mail.com>
> ---
> Changes since v1:
>   - Removed non-essential VID/PID to work with L716-EU tested module.
>   - Added device entry comment according to tested module/modes.
>   - Added according to VID/PID order
>   - Commit message improved with more information about module ports.
> ---
  @@ -2249,6 +2249,7 @@ static const struct usb_device_id option_ids[] = {
>   	  .driver_info = RSVD(4) | RSVD(5) | RSVD(6) },
>   	{ USB_DEVICE(0x1782, 0x4d10) },						/* Fibocom L610 (AT mode) */
>   	{ USB_DEVICE_INTERFACE_CLASS(0x1782, 0x4d11, 0xff) },			/* Fibocom L610 (ECM/RNDIS mode) */
> +	{ USB_DEVICE_AND_INTERFACE_INFO(0x2cb7, 0x0001, 0xff, 0xff, 0xff) },	/* Fibocom L716-EU (ECM/RNDIS mode) */
>   	{ USB_DEVICE(0x2cb7, 0x0104),						/* Fibocom NL678 series */
>   	  .driver_info = RSVD(4) | RSVD(5) },
>   	{ USB_DEVICE_INTERFACE_CLASS(0x2cb7, 0x0105, 0xff),			/* Fibocom NL678 series */

thanks, looks much better now

Reviewed-by: Lars Melin <larsm17@...il.com>