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Diffstat (limited to 'extra/lightbar/README')
| -rw-r--r-- | extra/lightbar/README | 39 |
1 files changed, 0 insertions, 39 deletions
diff --git a/extra/lightbar/README b/extra/lightbar/README deleted file mode 100644 index 1862f922e4..0000000000 --- a/extra/lightbar/README +++ /dev/null @@ -1,39 +0,0 @@ -Lightbar simulator ------------------------------------------------------------------------------- - -Build with "make lightbar". The executable is "./lightbar". - -You may need to install libxcb1-dev or similar. - -This provides a simulation environment for the lightbar task, compiling -common/lightbar.c from the EC source, but faking the rest of the EC. - -The EC console is on stdin/stdout, delivering all input to the lightbar's -console command handler (so it prefixes any input with "lightbar"). The -lightbar itself is displayed in an X window. You can click in that window to -emulate changes to the battery level, AC connection, and brightness, all of -which are normally outside the lightbar task's direct control. - -The initial sequence is "S5". Try issuing the command "seq s3s0" to see -something more familiar. - - -Note: the Pixel lightbar circuitry has three modes of operation: - -Unpowered - - When the host CPU is off (S5/G3), all power to the lightbar and its - controller circuitry is lost. - -On - - When the host CPU is on (S0) or suspended (S3), the lightbar is powered - again. After every power loss, it will need to be reinitialized by calling - lb_init() before it can be used. - -Standby - - The lightbar controller ICs can turn off all the LED outputs to conserve - power. This is the initial state when power is applied. You can turn the - LEDs off manually by calling lb_off(). When suspended, the controller will - respond to commands, but the LEDs aren't lit. Turn them on with lb_on(). |