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Message-ID: <ZDgca7wgfGlK/9cZ@hovoldconsulting.com>
Date: Thu, 13 Apr 2023 17:14:51 +0200
From: Johan Hovold <johan@...nel.org>
To: arinc9.unal@...il.com
Cc: Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
Arınç ÜNAL <arinc.unal@...nc9.com>,
Bjørn Mork <bjorn@...k.no>, me@...nan.com,
erkin.bozoglu@...ont.com, linux-usb@...r.kernel.org,
linux-kernel@...r.kernel.org
Subject: Re: [PATCH] USB: serial: option: add UNISOC vendor and TOZED LT70C
product
On Thu, Apr 06, 2023 at 08:50:04AM +0300, arinc9.unal@...il.com wrote:
> From: Arınç ÜNAL <arinc.unal@...nc9.com>
>
> Add UNISOC vendor ID and TOZED LT70-C modem which is based from UNISOC
> SL8563. The modem supports the NCM mode.
Thanks for the patch. Looks mostly good, but see my comments below.
> T: Bus=01 Lev=01 Prnt=01 Port=00 Cnt=01 Dev#= 6 Spd=480 MxCh= 0
> D: Ver= 2.00 Cls=00(>ifc ) Sub=00 Prot=00 MxPS=64 #Cfgs= 1
> P: Vendor=1782 ProdID=4055 Rev=04.04
> S: Manufacturer=Unisoc Phone
> S: Product=Unisoc Phone
> S: SerialNumber=<redacted>
> C: #Ifs=14 Cfg#= 1 Atr=c0 MxPwr=500mA
> I: If#= 0 Alt= 0 #EPs= 1 Cls=02(commc) Sub=0d Prot=00 Driver=cdc_ncm
> E: Ad=82(I) Atr=03(Int.) MxPS= 16 Ivl=32ms
> I: If#= 1 Alt= 1 #EPs= 2 Cls=0a(data ) Sub=00 Prot=01 Driver=cdc_ncm
> E: Ad=01(O) Atr=02(Bulk) MxPS= 512 Ivl=0ms
> E: Ad=81(I) Atr=02(Bulk) MxPS= 512 Ivl=0ms
> I: If#=10 Alt= 0 #EPs= 2 Cls=ff(vend.) Sub=00 Prot=00 Driver=option
> E: Ad=07(O) Atr=02(Bulk) MxPS= 512 Ivl=0ms
> E: Ad=8b(I) Atr=02(Bulk) MxPS= 512 Ivl=0ms
> I: If#=11 Alt= 0 #EPs= 2 Cls=ff(vend.) Sub=00 Prot=00 Driver=option
> E: Ad=08(O) Atr=02(Bulk) MxPS= 512 Ivl=0ms
> E: Ad=8c(I) Atr=02(Bulk) MxPS= 512 Ivl=0ms
> I: If#=12 Alt= 0 #EPs= 2 Cls=ff(vend.) Sub=42 Prot=01 Driver=option
> E: Ad=09(O) Atr=02(Bulk) MxPS= 512 Ivl=0ms
> E: Ad=8d(I) Atr=02(Bulk) MxPS= 512 Ivl=0ms
This looks like an ADB interface which should be blacklisted (reserved)
so that the driver does not bind to it.
> I: If#=13 Alt= 0 #EPs= 2 Cls=ff(vend.) Sub=00 Prot=00 Driver=option
> E: Ad=0a(O) Atr=02(Bulk) MxPS= 512 Ivl=0ms
> E: Ad=8e(I) Atr=02(Bulk) MxPS= 512 Ivl=0ms
> I: If#= 2 Alt= 0 #EPs= 1 Cls=02(commc) Sub=0d Prot=00 Driver=cdc_ncm
> E: Ad=84(I) Atr=03(Int.) MxPS= 16 Ivl=32ms
> I: If#= 3 Alt= 1 #EPs= 2 Cls=0a(data ) Sub=00 Prot=01 Driver=cdc_ncm
> E: Ad=02(O) Atr=02(Bulk) MxPS= 512 Ivl=0ms
> E: Ad=83(I) Atr=02(Bulk) MxPS= 512 Ivl=0ms
> I: If#= 4 Alt= 0 #EPs= 1 Cls=02(commc) Sub=0d Prot=00 Driver=cdc_ncm
> E: Ad=86(I) Atr=03(Int.) MxPS= 16 Ivl=32ms
> I: If#= 5 Alt= 1 #EPs= 2 Cls=0a(data ) Sub=00 Prot=01 Driver=cdc_ncm
> E: Ad=03(O) Atr=02(Bulk) MxPS= 512 Ivl=0ms
> E: Ad=85(I) Atr=02(Bulk) MxPS= 512 Ivl=0ms
> I: If#= 6 Alt= 0 #EPs= 1 Cls=02(commc) Sub=0d Prot=00 Driver=cdc_ncm
> E: Ad=88(I) Atr=03(Int.) MxPS= 16 Ivl=32ms
> I: If#= 7 Alt= 1 #EPs= 2 Cls=0a(data ) Sub=00 Prot=01 Driver=cdc_ncm
> E: Ad=04(O) Atr=02(Bulk) MxPS= 512 Ivl=0ms
> E: Ad=87(I) 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=05(O) Atr=02(Bulk) MxPS= 512 Ivl=0ms
> E: Ad=89(I) Atr=02(Bulk) MxPS= 512 Ivl=0ms
> I: If#= 9 Alt= 0 #EPs= 2 Cls=ff(vend.) Sub=00 Prot=00 Driver=option
> E: Ad=06(O) Atr=02(Bulk) MxPS= 512 Ivl=0ms
> E: Ad=8a(I) Atr=02(Bulk) MxPS= 512 Ivl=0ms
>
> Bus 001 Device 002: ID 1782:4055 Unisoc Phone Unisoc Phone
> Device Descriptor:
> bLength 18
> bDescriptorType 1
> bcdUSB 2.00
> bDeviceClass 0
> bDeviceSubClass 0
> bDeviceProtocol 0
> bMaxPacketSize0 64
> idVendor 0x1782
> idProduct 0x4055
> bcdDevice 4.04
> iManufacturer 1 Unisoc Phone
> iProduct 2 Unisoc Phone
> iSerial 3 <redacted>
> bNumConfigurations 1
When resending you can put the verbose lsusb output below the cut-off
line (---) so that we have it in the mail archives if ever needed.
Could you also add something what the various serial interfaces are used
for?
> Signed-off-by: Arınç ÜNAL <arinc.unal@...nc9.com>
> ---
>
> I did not receive any comments on RFC so I'm sending this as is.
>
> Arınç
>
> ---
> 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 f31cc3c76329..65a050a9ca39 100644
> --- a/drivers/usb/serial/option.c
> +++ b/drivers/usb/serial/option.c
> @@ -595,6 +595,11 @@ static void option_instat_callback(struct urb *urb);
> #define SIERRA_VENDOR_ID 0x1199
> #define SIERRA_PRODUCT_EM9191 0x90d3
>
> +/* UNISOC (Spreadtrum) products */
> +#define UNISOC_VENDOR_ID 0x1782
> +/* TOZED TL70-C based on UNISOC SL8563 uses UNISOC's vendor ID */
> +#define TOZED_PRODUCT_LT70C 0x4055
> +
> /* Device flags */
>
> /* Highest interface number which can be used with NCTRL() and RSVD() */
> @@ -2225,6 +2230,7 @@ static const struct usb_device_id option_ids[] = {
> { USB_DEVICE_AND_INTERFACE_INFO(OPPO_VENDOR_ID, OPPO_PRODUCT_R11, 0xff, 0xff, 0x30) },
> { USB_DEVICE_AND_INTERFACE_INFO(SIERRA_VENDOR_ID, SIERRA_PRODUCT_EM9191, 0xff, 0xff, 0x30) },
> { USB_DEVICE_AND_INTERFACE_INFO(SIERRA_VENDOR_ID, SIERRA_PRODUCT_EM9191, 0xff, 0, 0) },
> + { USB_DEVICE(UNISOC_VENDOR_ID, TOZED_PRODUCT_LT70C) },
You should match also on the interface class so that you don't try to
bind to the cdc interfaces. See USB_DEVICE_INTERFACE_CLASS() (and
RSVD() for the ADB interface).
> { } /* Terminating entry */
> };
> MODULE_DEVICE_TABLE(usb, option_ids);
Johan
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