linux-kernel - Re: [PATCH 2/2] USB: serial: option: add support for docomo L-03F

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]

Message-ID: <699018fe-dabc-21fc-1080-154555f210eb@alliedtelesis.co.nz>
Date:   Thu, 6 Oct 2022 19:44:42 +0000
From:   Chris Packham <Chris.Packham@...iedtelesis.co.nz>
To:     Lars Melin <larsm17@...il.com>,
        "johan@...nel.org" <johan@...nel.org>,
        "gregkh@...uxfoundation.org" <gregkh@...uxfoundation.org>
CC:     Hiroyuki Yamamoto <hyamamo@...ied-telesis.co.jp>,
        "linux-usb@...r.kernel.org" <linux-usb@...r.kernel.org>,
        "linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH 2/2] USB: serial: option: add support for docomo L-03F

Hi Lars,

On 14/09/22 16:18, Chris Packham wrote:
>
> On 14/09/22 16:10, Lars Melin wrote:
>> On 9/14/2022 09:55, Chris Packham wrote:
>>> Add support for the docomo L-03F modem.
>>>
>>> Signed-off-by: Chris Packham <chris.packham@...iedtelesis.co.nz>
>>> ---
>>>   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 2065f0fb2fa0..14eaff50820b 100644
>>> --- a/drivers/usb/serial/option.c
>>> +++ b/drivers/usb/serial/option.c
>>> @@ -527,6 +527,7 @@ static void option_instat_callback(struct urb 
>>> *urb);
>>>   /* LG products */
>>>   #define LG_VENDOR_ID                0x1004
>>>   #define LG_PRODUCT_L02C                0x618f
>>> +#define LG_PRODUCT_L03F                0x6366
>>>     /* MediaTek products */
>>>   #define MEDIATEK_VENDOR_ID            0x0e8d
>>> @@ -2079,6 +2080,7 @@ static const struct usb_device_id option_ids[] 
>>> = {
>>>       { USB_DEVICE_AND_INTERFACE_INFO(VIETTEL_VENDOR_ID, 
>>> VIETTEL_PRODUCT_VT1000, 0xff, 0xff, 0xff) },
>>>       { USB_DEVICE_AND_INTERFACE_INFO(ZD_VENDOR_ID, ZD_PRODUCT_7000, 
>>> 0xff, 0xff, 0xff) },
>>>       { USB_DEVICE(LG_VENDOR_ID, LG_PRODUCT_L02C) }, /* docomo L-02C 
>>> modem */
>>> +    { USB_DEVICE(LG_VENDOR_ID, LG_PRODUCT_L03F) }, /* docomo L-03F 
>>> modem */
>>>       { USB_DEVICE_AND_INTERFACE_INFO(MEDIATEK_VENDOR_ID, 0x00a1, 
>>> 0xff, 0x00, 0x00) },
>>>       { USB_DEVICE_AND_INTERFACE_INFO(MEDIATEK_VENDOR_ID, 0x00a1, 
>>> 0xff, 0x02, 0x01) },
>>>       { USB_DEVICE_AND_INTERFACE_INFO(MEDIATEK_VENDOR_ID, 0x00a2, 
>>> 0xff, 0x00, 0x00) },
>>
>>
>> Hi,
>> this doesn't seem to be correct. Since this is a LTE CAT3 highspeed 
>> device and the modem manual mentions MS Win NDIS driver then one 
>> interface is likely to be a QMI interface which you must blacklist in 
>> the option driver.
>> Please provide a usb-devices or verbose lsusb output for the modem.
>
> Yamamoto-san, are you able to provide the lsusb -v output for this 
> device? (Our internal issue for the code change is CR-56120).
>
Just following up on this. I've not been able to track down one of the 
actual modems and have had radio silence from my colleagues who did the 
original work.

Is the 1/2 patch of this series acceptable on it's own? (should I rebase 
and resubmit it).

>>
>> thanks
>> Lars