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Disable PCO on older Sierra modem MC7304

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Modem MC7304 has firmware flaw that PCO querry makes it unresponsive (firmware is not upgradable, no new release). There are possibily other older modems affected as well, I have no possibility to check. Add udev rule disabling PCO for affected modem (shares productID with RC7611).

Signed-off-by: Filip Pokryvka <fpokryvk@redhat.com>
This commit is contained in:
Filip Pokryvka
2026-09-08 11:59:35 -05:00
committed by Dan Williams
parent 357130472d
commit 69cde63231
1 changed files with 2 additions and 1 deletions
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src/plugins/sierra/77-mm-sierra.rules
+2 -1
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@@ -38,10 +38,11 @@ ATTRS{idVendor}=="1199", ATTRS{idProduct}=="9079", ENV{.MM_USBIFNUM}=="03", SUBS
ATTRS{idVendor}=="1199", ATTRS{idProduct}=="9079", ENV{.MM_USBIFNUM}=="02", SUBSYSTEM=="tty", ENV{ID_MM_PORT_TYPE_GPS}="1" ATTRS{idVendor}=="1199", ATTRS{idProduct}=="9079", ENV{.MM_USBIFNUM}=="02", SUBSYSTEM=="tty", ENV{ID_MM_PORT_TYPE_GPS}="1"
ATTRS{idVendor}=="1199", ATTRS{idProduct}=="9079", ENV{.MM_USBIFNUM}=="00", SUBSYSTEM=="tty", ENV{ID_MM_PORT_TYPE_QCDM}="1" ATTRS{idVendor}=="1199", ATTRS{idProduct}=="9079", ENV{.MM_USBIFNUM}=="00", SUBSYSTEM=="tty", ENV{ID_MM_PORT_TYPE_QCDM}="1"
# RC7611 port hints # RC7611 port hints and disable PCO
# if 03: primary port # if 03: primary port
# if 02: raw NMEA port # if 02: raw NMEA port
# if 00: diag/qcdm port # if 00: diag/qcdm port
ATTRS{idVendor}=="1199", ATTRS{idProduct}=="68c0", ENV{ID_MM_QMI_PCO_DISABLED}="1"
ATTRS{idVendor}=="1199", ATTRS{idProduct}=="68c0", ENV{.MM_USBIFNUM}=="03", SUBSYSTEM=="tty", ENV{ID_MM_PORT_TYPE_AT_PRIMARY}="1" ATTRS{idVendor}=="1199", ATTRS{idProduct}=="68c0", ENV{.MM_USBIFNUM}=="03", SUBSYSTEM=="tty", ENV{ID_MM_PORT_TYPE_AT_PRIMARY}="1"
ATTRS{idVendor}=="1199", ATTRS{idProduct}=="68c0", ENV{.MM_USBIFNUM}=="02", SUBSYSTEM=="tty", ENV{ID_MM_PORT_TYPE_GPS}="1" ATTRS{idVendor}=="1199", ATTRS{idProduct}=="68c0", ENV{.MM_USBIFNUM}=="02", SUBSYSTEM=="tty", ENV{ID_MM_PORT_TYPE_GPS}="1"
ATTRS{idVendor}=="1199", ATTRS{idProduct}=="68c0", ENV{.MM_USBIFNUM}=="00", SUBSYSTEM=="tty", ENV{ID_MM_PORT_TYPE_QCDM}="1" ATTRS{idVendor}=="1199", ATTRS{idProduct}=="68c0", ENV{.MM_USBIFNUM}=="00", SUBSYSTEM=="tty", ENV{ID_MM_PORT_TYPE_QCDM}="1"