b22b78b1be
Implement the RTC_PARAM_SET RTC ioctl in hwclock. The ioctl interface was introduced with [1], which went mainline in Kernel v5.16. The parameters are independent of hardware/driver. This means we can read and set parameters in a generic way. The new --param-set hwclock function accepts aliases for parameters currently existent (Kernel v5.16). They can be extended later on. As fallback and for values, hexadecimal (if prefixed with 0x) and decimal values, as defined in [2], are accepted. Example: $ hwclock --param-set bsm=0x0 [1] https://lore.kernel.org/all/20211018151933.76865-1-alexandre.belloni@bootlin.com/ [2] https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/tree/include/uapi/linux/rtc.h Signed-off-by: Bastian Krause <bst@pengutronix.de>
68 lines
1.1 KiB
Text
68 lines
1.1 KiB
Text
_hwclock_module()
|
|
{
|
|
local cur prev OPTS
|
|
COMPREPLY=()
|
|
cur="${COMP_WORDS[COMP_CWORD]}"
|
|
prev="${COMP_WORDS[COMP_CWORD-1]}"
|
|
case $prev in
|
|
'-f'|'--rtc'|'--adjfile')
|
|
local IFS=$'\n'
|
|
compopt -o filenames
|
|
COMPREPLY=( $(compgen -f -- $cur) )
|
|
return 0
|
|
;;
|
|
'--date'|'--delay')
|
|
COMPREPLY=( $(compgen -W "time" -- $cur) )
|
|
return 0
|
|
;;
|
|
'--epoch')
|
|
COMPREPLY=( $(compgen -W "year" -- $cur) )
|
|
return 0
|
|
;;
|
|
'--param-get')
|
|
COMPREPLY=( $(compgen -W "param" -- $cur) )
|
|
return 0
|
|
;;
|
|
'--param-set')
|
|
COMPREPLY=( $(compgen -W "param=value" -- $cur) )
|
|
return 0
|
|
;;
|
|
'-h'|'-?'|'--help'|'-v'|'-V'|'--version')
|
|
return 0
|
|
;;
|
|
esac
|
|
case $cur in
|
|
-*)
|
|
OPTS="--help
|
|
--show
|
|
--get
|
|
--set
|
|
--hctosys
|
|
--systohc
|
|
--systz
|
|
--adjust
|
|
--getepoch
|
|
--setepoch
|
|
--predict
|
|
--version
|
|
--utc
|
|
--localtime
|
|
--rtc
|
|
--directisa
|
|
--date
|
|
--delay
|
|
--epoch
|
|
--param-get
|
|
--param-set
|
|
--update-drift
|
|
--noadjfile
|
|
--adjfile
|
|
--test
|
|
--debug"
|
|
COMPREPLY=( $(compgen -W "${OPTS[*]}" -- $cur) )
|
|
return 0
|
|
;;
|
|
esac
|
|
return 0
|
|
}
|
|
complete -F _hwclock_module hwclock
|