1usbrelay(1)                 General Commands Manual                usbrelay(1)
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NAME

6       usbrelay - control or query USB HID relays
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SYNOPSIS

10       usbrelay [OPTION...]  [ACTION...]
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DESCRIPTION

14       usbrelay  allows for querying and setting the state of USB HID electri‐
15       cal relays.  If no ACTION is passed, the state of all relays is printed
16       to stdout.  RELID_N=[0|1] sets the N-th relay on module RELID to off or
17       on.
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19       Multiple actions can be performed with one command
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21       eg:
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23       usbrelay REL0A_1=0 REL0A_2=1 REL0B_2=0...
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25       Note that the RELID must only contain the  characters  A-Z0-9.   Change
26       the  RELID  using the device file as the RELID if the relay has illegal
27       characters (See below).
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29       The Relay module ID can be changed on DCTTECH relays:
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31       RELID_0=NEWID sets the relay RELID to NEWID
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33       alternatively
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35       /dev/hidrawX_0=NEWID (Substitute X for the device path shown  with  the
36       -d option)
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OPTIONS

40       -d, --debug
41              Produce debugging output
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43       -q, --quiet
44              Suppress output
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46       -?, --help
47              Print the help menu
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49       --usage
50              Print a usage description
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52       -V, --version
53              Print the program version
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57usbrelay                          24 Jan 2022                      usbrelay(1)