diff options
| author | Daan De Meyer <daan.j.demeyer@gmail.com> | 2024-06-10 12:59:58 +0200 |
|---|---|---|
| committer | Luca Boccassi <luca.boccassi@gmail.com> | 2024-06-12 01:09:26 +0200 |
| commit | dc38f9addd04c34d1fd743efc407bdebb3573d05 (patch) | |
| tree | 0853ddf390c1ed5d7f8ac60d2335671d1030b3c4 /rules.d | |
| parent | udev: rewrite token_match_attr() to make it easier for Coverity to understand (diff) | |
| download | systemd-dc38f9addd04c34d1fd743efc407bdebb3573d05.tar.xz systemd-dc38f9addd04c34d1fd743efc407bdebb3573d05.zip | |
rules: Limit the number of device units generated for serial ttys
As per the suggestion in https://github.com/systemd/systemd/issues/33242.
This reduces the number of /dev/ttySXX device units generated in
mkosi from 32 to 4.
Diffstat (limited to 'rules.d')
| -rw-r--r-- | rules.d/99-systemd.rules.in | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/rules.d/99-systemd.rules.in b/rules.d/99-systemd.rules.in index ad0c7e2fb5..8ba6f177f8 100644 --- a/rules.d/99-systemd.rules.in +++ b/rules.d/99-systemd.rules.in @@ -10,6 +10,8 @@ ACTION=="remove", GOTO="systemd_end" SUBSYSTEM=="tty", KERNEL=="tty[a-zA-Z]*|hvc*|xvc*|hvsi*|ttysclp*|sclp_line*|3270/tty[0-9]*", TAG+="systemd" +# Exclude 8250 serial ports with a zero IO port, as they are not usable until "setserial /dev/ttySxxx port …" is invoked. +SUBSYSTEM=="tty", KERNEL=="ttyS*", DRIVERS=="serial8250", ATTR{port}=="0x0", ENV{SYSTEMD_READY}="0" KERNEL=="vport*", TAG+="systemd" SUBSYSTEM=="ptp", TAG+="systemd" |