Pci-e device support

Aleksander Morgado aleksandermj at chromium.org
Tue Oct 1 18:26:03 UTC 2024


Hey,

>
> I have another question. What is the status of libqmi supporting pci-e device? The reason I ask is that we have a EM9293 Sierra modem with pcie connection type.
>
>
>
> Using libqmi-1.32.2 on el9, it doesn’t seem to work properly. From the source codes of (1.30.8), it seems a lot of the codes are expecting USB type of driver/device.
>
>
>
> Is this true?
>

There is nothing in libqmi that prevents it from being used with PCI
devices, as long as the device is correctly managed by the kernel
drivers. E.g. For the EM9293 in PCIe mode, I would assume the
corresponding support needs to exist in the mhi kernel driver, and if
that's the case, then we would expect to see a /dev/wwan0qmi0 port
exposed. This port can be used with libqmi/qmicli without issues.

How is it not working properly in your case?


-- 
Aleksander


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