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| author | Miguel Ojeda <miguel.ojeda.sandonis@gmail.com> | 2018-03-13 01:07:37 +0100 |
|---|---|---|
| committer | Miguel Ojeda <miguel.ojeda.sandonis@gmail.com> | 2018-04-12 16:08:02 +0200 |
| commit | 55bbf9ebe5fe633a2de974389ac6dbb9305ba89f (patch) | |
| tree | 259eb48df8d1ce7ed73603263da1795d882034f6 /Documentation/auxdisplay | |
| parent | 0adb32858b0bddf4ada5f364a84ed60b196dbcda (diff) | |
| download | lwn-55bbf9ebe5fe633a2de974389ac6dbb9305ba89f.tar.gz lwn-55bbf9ebe5fe633a2de974389ac6dbb9305ba89f.zip | |
Doc: misc-devices: move lcd-panel-cgram.txt to auxdisplay/
Commit 7005b58458e4beecaf5efacb872c456bc7d3541a ("Staging: add lcd-panel
driver") introduced the panel driver, which is now in
drivers/auxdisplay.
Cc: Willy Tarreau <w@1wt.eu>
Cc: Jonathan Corbet <corbet@lwn.net>
Signed-off-by: Miguel Ojeda <miguel.ojeda.sandonis@gmail.com>
Diffstat (limited to 'Documentation/auxdisplay')
| -rw-r--r-- | Documentation/auxdisplay/lcd-panel-cgram.txt | 24 |
1 files changed, 24 insertions, 0 deletions
diff --git a/Documentation/auxdisplay/lcd-panel-cgram.txt b/Documentation/auxdisplay/lcd-panel-cgram.txt new file mode 100644 index 000000000000..7f82c905763d --- /dev/null +++ b/Documentation/auxdisplay/lcd-panel-cgram.txt @@ -0,0 +1,24 @@ +Some LCDs allow you to define up to 8 characters, mapped to ASCII +characters 0 to 7. The escape code to define a new character is +'\e[LG' followed by one digit from 0 to 7, representing the character +number, and up to 8 couples of hex digits terminated by a semi-colon +(';'). Each couple of digits represents a line, with 1-bits for each +illuminated pixel with LSB on the right. Lines are numbered from the +top of the character to the bottom. On a 5x7 matrix, only the 5 lower +bits of the 7 first bytes are used for each character. If the string +is incomplete, only complete lines will be redefined. Here are some +examples : + + printf "\e[LG0010101050D1F0C04;" => 0 = [enter] + printf "\e[LG1040E1F0000000000;" => 1 = [up] + printf "\e[LG2000000001F0E0400;" => 2 = [down] + printf "\e[LG3040E1F001F0E0400;" => 3 = [up-down] + printf "\e[LG40002060E1E0E0602;" => 4 = [left] + printf "\e[LG500080C0E0F0E0C08;" => 5 = [right] + printf "\e[LG60016051516141400;" => 6 = "IP" + + printf "\e[LG00103071F1F070301;" => big speaker + printf "\e[LG00002061E1E060200;" => small speaker + +Willy + |