From 84ff5894db9a9e5633b27db51876c18dc8470c35 Mon Sep 17 00:00:00 2001 From: Matthias Schiffer Date: Wed, 11 Oct 2023 16:33:25 +0200 Subject: [PATCH] rules: add mtd/by-name symlinks Add persistent symlinks for MTD devices like SPI-NOR flash, based on the partition names specified on the cmdline, in a Device Tree, or by other MTD partitioning parser drivers. Using the persistent name can be preferable to using the numbered /dev/mtdX device, as the latter can change depending on probe order or when partitioning has changed. --- rules.d/60-persistent-storage-mtd.rules | 12 ++++++++++++ rules.d/meson.build | 1 + 2 files changed, 13 insertions(+) create mode 100644 rules.d/60-persistent-storage-mtd.rules diff --git a/rules.d/60-persistent-storage-mtd.rules b/rules.d/60-persistent-storage-mtd.rules new file mode 100644 index 0000000000..bcf93b9a05 --- /dev/null +++ b/rules.d/60-persistent-storage-mtd.rules @@ -0,0 +1,12 @@ +# do not edit this file, it will be overwritten on update + +# persistent storage links: /dev/mtd/by-name + +ACTION=="remove", GOTO="persistent_storage_mtd_end" +SUBSYSTEM!="mtd", GOTO="persistent_storage_mtd_end" +KERNEL!="mtd[0-9]*", GOTO="persistent_storage_mtd_end" +KERNEL=="mtd[0-9]*ro", GOTO="persistent_storage_mtd_end" + +ATTR{name}=="?*", SYMLINK+="mtd/by-name/$attr{name}" + +LABEL="persistent_storage_mtd_end" diff --git a/rules.d/meson.build b/rules.d/meson.build index 13f25397dc..3040fae8a4 100644 --- a/rules.d/meson.build +++ b/rules.d/meson.build @@ -16,6 +16,7 @@ rules = [ '60-input-id.rules', '60-persistent-alsa.rules', '60-persistent-input.rules', + '60-persistent-storage-mtd.rules', '60-persistent-storage-tape.rules', '60-persistent-v4l.rules', '60-sensor.rules',