LP55xx common driver supports the firmware interface. Sign up using Facebook. The LP55xx common driver provides simple interfaces as below. Thanks, Milo- — To unsubscribe from this list: Device attributes for user-space interface.

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A predefined pattern is defined in the platform data and load it or them via the sysfs if needed. For example, run blinking pattern in engine 3 of LP Start program which is loaded via the firmware interface. For the details, please refer to ‘firmware’ section in leds-lp55xx.

Linux source code: drivers/leds/leds-lpc (v) – Bootlin

LP55xx chips have three program engines. To end the pattern. To support device specific configurations, special structure. For example, run blinking pattern in engine 1 of LP Fri, 8 Nov Program memory address access for running patterns.


Milo, do you need to update your patch, if not I’m going to take it into my linus and for stable tree.

Please refer to commits below. I’ve been asked to try to change the blinking pattern of the controller from the command line and to play in general with the LP to get familiar with it. I think that I can’t send anything from the shell since the kernel is already using the driver for the heartbeat pattern but I’m not sure about this.

Device attributes for user-space interface. LP55xx common driver supports the firmware interface. Home Questions Tags Users Unanswered.

Led driver support for LP and LP chips []

The sequence of running the program data is common. Select which engine is used for running program.

If the level is too high, the led is missing; if the level is too low, there is a short circuit. Sign up using Facebook. This is the situation. Reload to refresh your session. Wednesday, August 14, 3: I bet it’s a regression somewhere.


CONFIG_LEDS_LP5521: LED Support for N.S. LP5521 LED driver chip

On Tuesday 13 August Register access via kp5521 I2C. This pattern data is saved as a file in the user-land or. I will fix that and merge into my tree. Post as a guest Name. If the name field is not defined, the default name will be set to lp55521 If the current is set to 0 in the platform data, that channel is.

Predefined pattern data Without the firmware interface, LP55xx driver provides another method for loading a LED pattern.

Details of the micro engine code can be found.