Re: wwan/iosm vs. xmm7360

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:

quoted

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

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