From 9bc59425290d03e41699fe862132507716e18882 Mon Sep 17 00:00:00 2001 From: Aleksander Morgado Date: Tue, 9 Nov 2021 11:24:00 +0100 Subject: [PATCH] modemmanager: fix physdev sysfs path detection in PCIe modems The PCIe physdev path lookup relies on the 'vendor' and 'device' attribute files, instead of the 'idVendor' and 'idProduct' ones, which are USB specific. Signed-off-by: Aleksander Morgado --- net/modemmanager/files/modemmanager.common | 11 ++++++++++- 1 file changed, 10 insertions(+), 1 deletion(-) diff --git a/net/modemmanager/files/modemmanager.common b/net/modemmanager/files/modemmanager.common index b898a7798..b4139abad 100644 --- a/net/modemmanager/files/modemmanager.common +++ b/net/modemmanager/files/modemmanager.common @@ -39,12 +39,21 @@ mm_find_physdev_sysfs_path() { # avoid infinite loops iterating [ -z "${tmp_path}" ] || [ "${tmp_path}" = "/" ] && return - # the physical device will be that with a idVendor and idProduct pair of files + # For USB devices, the physical device will be that with a idVendor + # and idProduct pair of files [ -f "${tmp_path}"/idVendor ] && [ -f "${tmp_path}"/idProduct ] && { tmp_path=$(readlink -f "$tmp_path") echo "${tmp_path}" return } + + # For PCI devices, the physical device will be that with a vendor + # and device pair of files + [ -f "${tmp_path}"/vendor ] && [ -f "${tmp_path}"/device ] && { + tmp_path=$(readlink -f "$tmp_path") + echo "${tmp_path}" + return + } done }