From 93406237d7ecd4d28684828e2d127a864f44e862 Mon Sep 17 00:00:00 2001 From: Christian Breunig Date: Mon, 25 May 2026 13:41:52 +0200 Subject: wwan: T8924: add UDEV configuration for USB modeswitch When using WWAN interfaces, the Linux kernel selects configuration 2 by default, but that does not work with ModemManager - configuration 3 (MBIM mode) is a better choice. Add UDEV rules for Huawei ME906s-158 and HP LT4132 which is a re-brand of Huawei ME906s-158 to properly set MBIM mode on system startup. --- src/etc/udev/rules.d/40-usb_modeswitch.rules | 11 +++++++++++ 1 file changed, 11 insertions(+) create mode 100644 src/etc/udev/rules.d/40-usb_modeswitch.rules (limited to 'src') diff --git a/src/etc/udev/rules.d/40-usb_modeswitch.rules b/src/etc/udev/rules.d/40-usb_modeswitch.rules new file mode 100644 index 000000000..cb296dd6c --- /dev/null +++ b/src/etc/udev/rules.d/40-usb_modeswitch.rules @@ -0,0 +1,11 @@ +# The Linux kernel selects configuration 2 by default, but that does not work with ModemManager - configuration 3 (MBIM mode) is a better choice + +# HP LT4132 which is a re-brand of Huawei ME906s-158 +ACTION=="add|change", SUBSYSTEM=="usb", ATTR{idVendor}=="03f0", ATTR{idProduct}=="a31d", ATTR{bConfigurationValue}!="3", ATTR{bConfigurationValue}:="0" +ACTION=="add|change", SUBSYSTEM=="usb", ATTR{idVendor}=="03f0", ATTR{idProduct}=="a31d", ATTR{bConfigurationValue}!="3", RUN+="/bin/sh -c 'sleep 1; echo 3 > %S%p/bConfigurationValue'" +ACTION=="add|change", SUBSYSTEM=="net", ATTRS{idVendor}=="03f0", ATTRS{idProduct}=="a31d", ATTR{cdc_ncm/ndp_to_end}=="N", ATTR{cdc_ncm/ndp_to_end}:="Y" + +# Huawei Technologies Co., Ltd. ME906s LTE M.2 +ACTION=="add|change", SUBSYSTEM=="usb", ATTR{idVendor}=="12d1", ATTR{idProduct}=="15c1", ATTR{bConfigurationValue}!="3", ATTR{bConfigurationValue}:="0" +ACTION=="add|change", SUBSYSTEM=="usb", ATTR{idVendor}=="12d1", ATTR{idProduct}=="15c1", ATTR{bConfigurationValue}!="3", RUN+="/bin/sh -c 'sleep 1; echo 3 > %S%p/bConfigurationValue'" +ACTION=="add|change", SUBSYSTEM=="net", ATTRS{idVendor}=="12d1", ATTRS{idProduct}=="15c1", ATTR{cdc_ncm/ndp_to_end}=="N", ATTR{cdc_ncm/ndp_to_end}:="Y" -- cgit v1.2.3