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+#compdef udevadm                    -*- shell-script -*-
+# SPDX-License-Identifier: LGPL-2.1-or-later
+
+(( $+functions[_udevadm_info] )) ||
+_udevadm_info(){
+    _arguments \
+        '--query=[Query the database for specified type of device data. It needs the --path or --name to identify the specified device.]:type:(name symlink path property all)' \
+        '--path=[The devpath of the device to query.]:sys files:_files -P /sys/ -W /sys' \
+        '--name=[The name of the device node or a symlink to query]:device files:_files -P /dev/ -W /dev' \
+        '--root[Print absolute paths in name or symlink query.]' \
+        '--attribute-walk[Print all sysfs properties of the specified device that can be used in udev rules to match the specified device]' \
+        '--export[Print output as key/value pairs.]' \
+        '--export-prefix=[Add a prefix to the key name of exported values.]:prefix' \
+        '--device-id-of-file=[Print major/minor numbers of the underlying device, where the file lives on.]:files:_udevadm_mounts' \
+        '--export-db[Export the content of the udev database.]' \
+        '--cleanup-db[Cleanup the udev database.]'
+}
+
+(( $+functions[_udevadm_trigger] )) ||
+_udevadm_trigger(){
+    _arguments \
+        '--verbose[Print the list of devices which will be triggered.]' \
+        '--dry-run[Do not actually trigger the event.]' \
+        '--type=[Trigger a specific type of devices.]:types:(devices subsystems failed)' \
+        '--action=[Type of event to be triggered.]:actions:(add change remove)' \
+        '--subsystem-match=[Trigger events for devices which belong to a matching subsystem.]' \
+        '--subsystem-nomatch=[Do not trigger events for devices which belong to a matching subsystem.]' \
+        '--attr-match=attribute=[Trigger events for devices with a matching sysfs attribute.]' \
+        '--attr-nomatch=attribute=[Do not trigger events for devices with a matching sysfs attribute.]' \
+        '--property-match=[Trigger events for devices with a matching property value.]' \
+        '--tag-match=property[Trigger events for devices with a matching tag.]' \
+        '--sysname-match=[Trigger events for devices with a matching sys device name.]' \
+        '--parent-match=[Trigger events for all children of a given device.]'
+}
+
+(( $+functions[_udevadm_settle] )) ||
+_udevadm_settle(){
+    _arguments \
+       '--timeout=[Maximum number of seconds to wait for the event queue to become empty.]' \
+       '--seq-start=[Wait only for events after the given sequence number.]' \
+       '--seq-end=[Wait only for events before the given sequence number.]' \
+       '--exit-if-exists=[Stop waiting if file exists.]:files:_files' \
+       '--quiet[Do not print any output, like the remaining queue entries when reaching the timeout.]' \
+       '--help[Print help text.]'
+}
+
+(( $+functions[_udevadm_control] )) ||
+_udevadm_control(){
+    _arguments \
+        '--exit[Signal and wait for systemd-udevd to exit.]' \
+        '--log-priority=[Set the internal log level of systemd-udevd.]:priorities:(err info debug)' \
+        '--stop-exec-queue[Signal systemd-udevd to stop executing new events. Incoming events will be queued.]' \
+        '--start-exec-queue[Signal systemd-udevd to enable the execution of events.]' \
+        '--reload[Signal systemd-udevd to reload the rules files and other databases like the kernel module index.]' \
+        '--property=[Set a global property for all events.]' \
+        '--children-max=[Set the maximum number of events.]' \
+        '--timeout=[The maximum number of seconds to wait for a reply from systemd-udevd.]' \
+        '--help[Print help text.]'
+}
+
+(( $+functions[_udevadm_monitor] )) ||
+_udevadm_monitor(){
+    _arguments \
+        '--kernel[Print the kernel uevents.]' \
+        '--udev[Print the udev event after the rule processing.]' \
+        '--property[Also print the properties of the event.]' \
+        '--subsystem-match=[Filter events by subsystem/\[devtype\].]' \
+        '--tag-match=[Filter events by property.]' \
+        '--help[Print help text.]'
+}
+
+(( $+functions[_udevadm_test] )) ||
+_udevadm_test(){
+    _arguments \
+        '--action=[The action string.]:actions:(add change remove)' \
+        '--subsystem=[The subsystem string.]' \
+        '--help[Print help text.]' \
+        '*::devpath:_files -P /sys/ -W /sys'
+}
+
+(( $+functions[_udevadm_test-builtin] )) ||
+_udevadm_test-builtin(){
+    if (( CURRENT == 2 )); then
+    _arguments \
+        '--help[Print help text]' \
+        '*::builtins:(blkid btrfs hwdb input_id net_id net_setup_link kmod path_id usb_id uaccess)'
+    elif  (( CURRENT == 3 )); then
+        _arguments \
+            '--help[Print help text]' \
+            '*::syspath:_files -P /sys -W /sys'
+    else
+        _arguments \
+            '--help[Print help text]'
+    fi
+}
+
+(( $+functions[_udevadm_mounts] )) ||
+_udevadm_mounts(){
+  local dev_tmp dpath_tmp mp_tmp mline
+
+    tmp=( "${(@f)$(< /proc/self/mounts)}" )
+    dev_tmp=( "${(@)${(@)tmp%% *}:#none}" )
+    mp_tmp=( "${(@)${(@)tmp#* }%% *}" )
+
+  local MATCH
+  mp_tmp=("${(@q)mp_tmp//(#m)\\[0-7](#c3)/${(#)$(( 8#${MATCH[2,-1]} ))}}")
+  dpath_tmp=( "${(@Mq)dev_tmp:#/*}" )
+  dev_tmp=( "${(@q)dev_tmp:#/*}" )
+
+  _alternative \
+    'device-paths: device path:compadd -a dpath_tmp' \
+    'directories:mount point:compadd -a mp_tmp'
+}
+
+(( $+functions[_udevadm_commands] )) ||
+_udevadm_commands(){
+    local -a _udevadm_cmds
+    _udevadm_cmds=(
+        'info:query sysfs or the udev database'
+        'trigger:request events from the kernel'
+        'settle:wait for the event queue to finish'
+        'control:control the udev daemon'
+        'monitor:listen to kernel and udev events'
+        'test:test an event run'
+        'test-builtin:test a built-in command'
+    )
+
+    if ((CURRENT == 1)); then
+        _describe -t commands 'udevadm commands' _udevadm_cmds
+    else
+        local curcontext="$curcontext"
+        cmd="${${_udevadm_cmds[(r)$words[1]:*]%%:*}}"
+        if (($#cmd)); then
+            if (( $+functions[_udevadm_$cmd] )); then
+                _udevadm_$cmd
+            else
+                _message "no options for $cmd"
+            fi
+        else
+            _message "no more options"
+        fi
+    fi
+}
+
+_arguments \
+    '--debug[Print debug messages to stderr]' \
+    '--version[Print version number]' \
+    '--help[Print help text]' \
+    '*::udevadm commands:_udevadm_commands'