Man page - usbrelay(1)
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Manual
usbrelay
NAMESYNOPSIS
DESCRIPTION
OPTIONS
SEE ALSO
NAME
usbrelay - control or query USB HID relays
SYNOPSIS
usbrelay [OPTION...] [ACTION...]
DESCRIPTION
usbrelay allows for querying and setting the state of USB HID electrical relays. If no ACTION is passed, the state of all relays is printed to stdout. RELID_N=[0|1] sets the N-th relay on module RELID to off or on.
Multiple actions can be performed with one command
eg:
usbrelay REL0A_1=0 REL0A_2=1 REL0B_2=0...
The Relay module ID can be changed on DCTTECH relays: RELID_0=NEWID sets the relay RELID to NEWID
OPTIONS
-d , --debug
Produce debugging output
-q , --quiet
Suppress output
-? , --help
Print the help menu
--usage
Print a usage description
-V , --version
Print the program version
SEE ALSO
/usr/share/doc/usbrelay/README.md.gz