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From: Jan Kiszka <jan.kiszka@siemens.com>
To: "Kumar, M Chetan" <m.chetan.kumar@linux.intel.com>
Cc: Linux Kernel Mailing List <linux-kernel@vger.kernel.org>,
	Linux Netdev List <netdev@vger.kernel.org>,
	linuxwwan@intel.com
Subject: Re: wwan/iosm vs. xmm7360
Date: Fri, 6 Aug 2021 11:41:27 +0200	[thread overview]
Message-ID: <bafc04de-fb2c-03b4-69c1-ac91e9e8c7ae@siemens.com> (raw)
In-Reply-To: <eb8fa6ad-10c8-e035-9bd8-1caf470e739e@linux.intel.com>

On 06.08.21 11:29, Kumar, M Chetan wrote:
> Hi Jan,
> 
> What is the context of this request ?

The context is that there are many folks out there (me included - Lenovo
P52) with devices that have the xmm-7360 built-in, can't switch it to
USB mode (prevented by OEM), and currently require [1]. That kind of
works but is not really the final solution. So I also kicked off [2] there.

> 
> FYI, the driver upstreamed is for M.2 7560.

I know. I'm not an expert on the details, but reading the overall
architectures of the IOSM and what has been reverse-engineered for the
7360, there seem to be some similarities. So, maybe you can explain to
the community if that is a reasonable path to upstream 7360 support, or
if at least the pattern of the 7560 could/should be transferred to the
7360 driver.

Thanks,
Jan

[2] https://github.com/xmm7360/xmm7360-pci/issues/104

> 
> Regards,
> Chetan
> 
> On 8/6/2021 2:09 AM, Jan Kiszka wrote:
>> Hi Chetan,
>>
>> at the risk of having missed this being answered already:
>>
>> How close is the older xmm7360 to the now supported xmm7560 in mainline?
>>
>> There is that reverse engineered PCI driver [1] with non-standard
>> userland interface, and it would obviously be great to benefit from
>> common infrastructure and specifically the modem-manager compatible
>> interface. Is this realistic to achieve for the 7360, or is that
>> hardware or its firmware too different?
>>
>> Thanks,
>> Jan
>>
>> [1] https://github.com/xmm7360/xmm7360-pci
>>

-- 
Siemens AG, T RDA IOT
Corporate Competence Center Embedded Linux

  reply	other threads:[~2021-08-06  9:58 UTC|newest]

Thread overview: 4+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2021-08-05 20:39 Jan Kiszka
2021-08-06  9:29 ` Kumar, M Chetan
2021-08-06  9:41   ` Jan Kiszka [this message]
2021-09-07 18:01     ` Florian Klink

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