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umbim: add support for wwan device class

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Some MBIM devices can exist on an MHI bus (over PCIe) instead of being presented as USB devices.

In such cases the interface name lookup needs to be done from /sys/class/wwan/ instead of /sys/class/usbmisc/

Add another readlink call in case the first lookup fails.

This allows the MBIM protocol to find the interface name and then work with both type of devices provided that /etc/config/network has the right device for MBIM interface (such as /dev/wwan0mbim0 in case of MHI)

Signed-off-by: Antti Seppälä <a.seppala@gmail.com>
This commit is contained in:
Antti Seppälä 2025-05-27 11:20:09 +03:00 committed by Robert Marko
parent 53c723246a
commit 9f76070e2d
1 changed files with 1 additions and 1 deletions
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package/network/utils/umbim/files/lib/netifd/proto/mbim.sh
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@ -73,7 +73,7 @@ _proto_mbim_setup() {
}
devname="$(basename "$device")"
devpath="$(readlink -f /sys/class/usbmisc/$devname/device/)"
devpath="$(readlink -f /sys/class/usbmisc/$devname/device/ || readlink -f /sys/class/wwan/$devname/device/)"
ifname="$( ls "$devpath"/net )"
[ -n "$ifname" ] || {