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Message-ID: <YlPjio75ekl1gL52@hovoldconsulting.com>
Date: Mon, 11 Apr 2022 10:15:06 +0200
From: Johan Hovold <johan@...nel.org>
To: sven@...nschwermer.de
Cc: linux-usb@...r.kernel.org,
Sven Schwermer <sven.schwermer@...ruptive-technologies.com>,
linux-kernel@...r.kernel.org
Subject: Re: [PATCH v1 1/2] usb: serial: option: Add Fibocom L610 modem
On Thu, Apr 07, 2022 at 09:49:44AM +0200, sven@...nschwermer.de wrote:
> From: Sven Schwermer <sven.schwermer@...ruptive-technologies.com>
Thanks for the patches.
Could you add some introductory text here describing the three
configurations?
Do you know what the individual vendor interfaces are used for in each
configuration?
> +GTUSBMODE: 31
> --------------
> T: Bus=03 Lev=01 Prnt=01 Port=06 Cnt=04 Dev#=124 Spd=480 MxCh= 0
> D: Ver= 2.00 Cls=00(>ifc ) Sub=00 Prot=00 MxPS=64 #Cfgs= 1
> P: Vendor=1782 ProdID=4d10 Rev= 0.00
> S: Manufacturer=FIBOCOM
> S: Product=L610
> C:* #Ifs= 7 Cfg#= 1 Atr=e0 MxPwr=400mA
> I:* If#= 0 Alt= 0 #EPs= 2 Cls=ff(vend.) Sub=00 Prot=00 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=00 Prot=00 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#= 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=03(O) Atr=02(Bulk) MxPS= 512 Ivl=0ms
> 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=04(O) Atr=02(Bulk) MxPS= 512 Ivl=0ms
> 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=05(O) Atr=02(Bulk) MxPS= 512 Ivl=0ms
> I:* If#= 5 Alt= 0 #EPs= 2 Cls=ff(vend.) Sub=00 Prot=00 Driver=option
> E: Ad=86(I) Atr=02(Bulk) MxPS= 512 Ivl=0ms
> E: Ad=06(O) Atr=02(Bulk) MxPS= 512 Ivl=0ms
> 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=07(O) Atr=02(Bulk) MxPS= 512 Ivl=0ms
>
> +GTUSBMODE: 32
> --------------
> T: Bus=03 Lev=01 Prnt=01 Port=06 Cnt=04 Dev#=122 Spd=480 MxCh= 0
> D: Ver= 2.00 Cls=00(>ifc ) Sub=00 Prot=00 MxPS=64 #Cfgs= 1
> P: Vendor=1782 ProdID=4d11 Rev= 0.00
> S: Manufacturer=FIBOCOM
> S: Product=L610
> C:* #Ifs= 9 Cfg#= 1 Atr=e0 MxPwr=400mA
> 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=81(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=82(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=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
> 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
> 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
> I:* If#= 5 Alt= 0 #EPs= 2 Cls=ff(vend.) Sub=00 Prot=00 Driver=option
> E: Ad=86(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=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
> 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
> 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
>
> +GTUSBMODE: 33
> --------------
> T: Bus=03 Lev=01 Prnt=01 Port=06 Cnt=04 Dev#=126 Spd=480 MxCh= 0
> D: Ver= 2.00 Cls=00(>ifc ) Sub=00 Prot=00 MxPS=64 #Cfgs= 1
> P: Vendor=1782 ProdID=4d11 Rev= 0.00
> S: Manufacturer=FIBOCOM
> S: Product=L610
> C:* #Ifs= 9 Cfg#= 1 Atr=e0 MxPwr=400mA
> A: FirstIf#= 0 IfCount= 2 Cls=e0(wlcon) Sub=01 Prot=03
> I:* If#= 0 Alt= 0 #EPs= 1 Cls=e0(wlcon) Sub=01 Prot=03 Driver=rndis_host
> E: Ad=82(I) Atr=03(Int.) MxPS= 8 Ivl=4096ms
> 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=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
> 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
> 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
> I:* If#= 5 Alt= 0 #EPs= 2 Cls=ff(vend.) Sub=00 Prot=00 Driver=option
> E: Ad=86(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=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
> 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
> 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
>
> Signed-off-by: Sven Schwermer <sven.schwermer@...ruptive-technologies.com>
> ---
> drivers/usb/serial/option.c | 3 +++
> 1 file changed, 3 insertions(+)
>
> diff --git a/drivers/usb/serial/option.c b/drivers/usb/serial/option.c
> index e7755d9cfc61..75b62e08b82f 100644
> --- a/drivers/usb/serial/option.c
> +++ b/drivers/usb/serial/option.c
> @@ -2111,6 +2111,9 @@ static const struct usb_device_id option_ids[] = {
> .driver_info = RSVD(3) },
> { USB_DEVICE(0x1508, 0x1001), /* Fibocom NL668 (IOT version) */
> .driver_info = RSVD(4) | RSVD(5) | RSVD(6) },
> + { USB_DEVICE(0x1782, 0x4d10) }, /* Fibocom L610 (+GTUSBMODE=31) */
Perhaps use a short human readable description of the mode instead of
the AT commands in the comments?
> + { USB_DEVICE(0x1782, 0x4d11), /* Fibocom L610 (+GTUSBMODE={32,33}) */
> + .driver_info = RSVD(0) | RSVD(1) },
Please use USB_DEVICE_INTERFACE_CLASS() here instead enumerating the
non-vendor class interfaces as reserved.
> { USB_DEVICE(0x2cb7, 0x0104), /* Fibocom NL678 series */
> .driver_info = RSVD(4) | RSVD(5) },
> { USB_DEVICE_INTERFACE_CLASS(0x2cb7, 0x0105, 0xff), /* Fibocom NL678 series */
Johan
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