1IR-KEYTABLE(1) 1.25.0"" IR-KEYTABLE(1)
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6 ir-keytable - a swiss-knife tool to handle Remote Controllers.
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9 ir-keytable [OPTION]...
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12 ir-keytable is a tool that lists Remote Controller devices, loads rc
13 keymaps, tests events, and adjusts other Remote Controller options.
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15 Rather than loading a rc keymap, it is also possible to set protocol
16 decoders and set rc scancode to keycode mappings directly.
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18 Note: You need to have read permissions on /dev/input for most of the
19 options to work.
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22 -a, --auto-load=CFGFILE
23 Auto-load keymaps, based on a configuration file. Only works
24 with --sysdev.
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26 -c, --clear
27 Clears the scancode to keycode mappings.
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29 -D, --delay=DELAY
30 Sets the delay before repeating a keystroke.
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32 -k, --set-key=SCANKEY
33 Set scancode to keycode mapping.
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35 -p, --protocol=PROTOCOL
36 Comma separated list of kernel protocols or BPF protocol to en‐
37 able. All other protocols are disabled.
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39 -e, --parameter=PARAMETER
40 Comma separated list of parameters for the BPF protocol.
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42 -P, --period=PERIOD
43 Sets the period to repeat a keystroke.
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45 -r, --read
46 Read and show the current scancode to keycode mapping.
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48 -s, --sysdev=SYSDEV
49 rc device to control, defaults to rc0 if not specified.
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51 -t, --test
52 test if the rc device is generating events
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54 -v, --verbose
55 Enables debug messages.
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57 -w, --write=KEYMAP
58 Reads the protocols and scancode to keycode mapping from the
59 KEYMAP file, and enables those on the rc device.
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61 -?, --help
62 Prints the help message
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64 --usage
65 Give a short usage message
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67 -V, --version
68 print the v4l2-utils version
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70 Mandatory or optional arguments to long options are also mandatory or
71 optional for any corresponding short options. Options can be combined
72 together.
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74 The options arguments are:
75 SYSDEV the rc device as found at /sys/class/rc
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77 KEYMAP a toml keymap file with a list of protocols and scancodes to
78 keycode mappings. The format is described in rc_keymap(5).
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80 SCANKEY
81 a set of scancode1=keycode1,scancode2=keycode2.. value pairs
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83 PROTOCOL
84 Comma separated list of kernel protocols to be enabled (case in‐
85 sensitive). Supported kernel protocols are: nec, rc-5, rc-6,
86 jvc, sony, sanyo, rc-5-sz, sharp, mce-kbd, xmp, imon, rc-mm,
87 other, all. It can also be a BPF protocol, e.g. manchester,
88 pulse_distance, pulse_length. If it does not match any of
89 these, it is taken to be the path of BPF decoder to be loaded.
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91 PARAMETERS
92 Comma separated list of parameters for the BPF protocol being
93 loaded. They have the format of name=value, where value is an
94 number.
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96 DELAY Delay before repeating a keystroke
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98 PERIOD Period to repeat a keystroke
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100 CFGFILE
101 configuration file that associates a driver/keymap name with a
102 keymap file
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105 On success, it returns 0. Otherwise, it will return the error code.
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108 To list all connected Remote Controller devices:
109 ir-keytable
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111 To clean the keycode mapping and use a newer one:
112 ir-keytable -c -w /etc/rc_keymaps/nec_terratec_cinergy_xs.toml
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114 To append more codes to the existing table:
115 ir-keytable -w /etc/rc_keymaps/nec_terratec_cinergy_xs.toml
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117 To read the current scancode to keycode mapping on the second remote
118 controller:
119 ir-keytable -s rc1 -r
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121 To enable NEC protocol and load a BPF protocol, with a parameter for
122 the BPF protocol:
123 ir-keytable -p nec,pulse_distance -e pulse_header=9000
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125 If you do not know what protocol a remote uses, it can be helpful to
126 first try with all kernel decoders enabled. The decoded protocol and
127 scancodes will be displayed in the output:
128 ir-keytable -c -p all -t
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132 Report bugs to Linux Media Mailing List <linux-media@vger.kernel.org>
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135 Copyright (c) 2010-2014 by Mauro Carvalho Chehab.
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137 License GPLv2: GNU GPL version 2 <http://gnu.org/licenses/gpl.html>.
138 This is free software: you are free to change and redistribute it.
139 There is NO WARRANTY, to the extent permitted by law.
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142 The keymap format is described in rc_keymap(5).
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144 To transmit IR or receive raw IR, see ir-ctl(1).
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148v4l-utils Fri Oct 3 2014 IR-KEYTABLE(1)