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| /openbmc/phosphor-led-sysfs/ |
| H A D | physical.hpp | diff 5b1417bd21d1e9c00b25bb6db700aec442af746d Mon Mar 18 01:50:37 CDT 2019 Andrew Jeffery <andrew@aj.id.au> physical: Conform to LED class kernel ABI
The kernel says the following about the LED sysfs interface:
> LED handling under Linux
> ========================
>
> In its simplest form, the LED class just allows control of LEDs from
> userspace. LEDs appear in /sys/class/leds/. The maximum brightness of the
> LED is defined in max_brightness file. The brightness file will set the brightness
> of the LED (taking a value 0-max_brightness). Most LEDs don't have hardware
> brightness support so will just be turned on for non-zero brightness settings.
The existing code assumed that max_brightness always held a value of
255 and defined a constant for it. Instead, use a class variable to
cache the max brightness for the associated LED.
Change-Id: I2d8f46de0cddac5f9d8ff5444449518bb4056130
Signed-off-by: Andrew Jeffery <andrew@aj.id.au>
|
| H A D | physical.cpp | diff 5b1417bd21d1e9c00b25bb6db700aec442af746d Mon Mar 18 01:50:37 CDT 2019 Andrew Jeffery <andrew@aj.id.au> physical: Conform to LED class kernel ABI
The kernel says the following about the LED sysfs interface:
> LED handling under Linux
> ========================
>
> In its simplest form, the LED class just allows control of LEDs from
> userspace. LEDs appear in /sys/class/leds/. The maximum brightness of the
> LED is defined in max_brightness file. The brightness file will set the brightness
> of the LED (taking a value 0-max_brightness). Most LEDs don't have hardware
> brightness support so will just be turned on for non-zero brightness settings.
The existing code assumed that max_brightness always held a value of
255 and defined a constant for it. Instead, use a class variable to
cache the max brightness for the associated LED.
Change-Id: I2d8f46de0cddac5f9d8ff5444449518bb4056130
Signed-off-by: Andrew Jeffery <andrew@aj.id.au>
|
| /openbmc/phosphor-led-sysfs/test/ |
| H A D | physical.cpp | diff 5b1417bd21d1e9c00b25bb6db700aec442af746d Mon Mar 18 01:50:37 CDT 2019 Andrew Jeffery <andrew@aj.id.au> physical: Conform to LED class kernel ABI
The kernel says the following about the LED sysfs interface:
> LED handling under Linux
> ========================
>
> In its simplest form, the LED class just allows control of LEDs from
> userspace. LEDs appear in /sys/class/leds/. The maximum brightness of the
> LED is defined in max_brightness file. The brightness file will set the brightness
> of the LED (taking a value 0-max_brightness). Most LEDs don't have hardware
> brightness support so will just be turned on for non-zero brightness settings.
The existing code assumed that max_brightness always held a value of
255 and defined a constant for it. Instead, use a class variable to
cache the max brightness for the associated LED.
Change-Id: I2d8f46de0cddac5f9d8ff5444449518bb4056130
Signed-off-by: Andrew Jeffery <andrew@aj.id.au>
|