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89 lines
3.0 KiB
89 lines
3.0 KiB
What: /sys/class/leds/<led>/flash_brightness |
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Date: March 2015 |
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KernelVersion: 4.0 |
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Contact: Jacek Anaszewski <[email protected]> |
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Description: read/write |
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Set the brightness of this LED in the flash strobe mode, in |
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microamperes. The file is created only for the flash LED devices |
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that support setting flash brightness. |
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The value is between 0 and |
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/sys/class/leds/<led>/max_flash_brightness. |
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What: /sys/class/leds/<led>/max_flash_brightness |
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Date: March 2015 |
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KernelVersion: 4.0 |
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Contact: Jacek Anaszewski <[email protected]> |
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Description: read only |
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Maximum brightness level for this LED in the flash strobe mode, |
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in microamperes. |
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What: /sys/class/leds/<led>/flash_timeout |
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Date: March 2015 |
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KernelVersion: 4.0 |
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Contact: Jacek Anaszewski <[email protected]> |
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Description: read/write |
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Hardware timeout for flash, in microseconds. The flash strobe |
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is stopped after this period of time has passed from the start |
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of the strobe. The file is created only for the flash LED |
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devices that support setting flash timeout. |
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What: /sys/class/leds/<led>/max_flash_timeout |
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Date: March 2015 |
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KernelVersion: 4.0 |
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Contact: Jacek Anaszewski <[email protected]> |
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Description: read only |
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Maximum flash timeout for this LED, in microseconds. |
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What: /sys/class/leds/<led>/flash_strobe |
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Date: March 2015 |
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KernelVersion: 4.0 |
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Contact: Jacek Anaszewski <[email protected]> |
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Description: read/write |
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Flash strobe state. When written with 1 it triggers flash strobe |
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and when written with 0 it turns the flash off. |
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On read 1 means that flash is currently strobing and 0 means |
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that flash is off. |
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What: /sys/class/leds/<led>/flash_fault |
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Date: March 2015 |
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KernelVersion: 4.0 |
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Contact: Jacek Anaszewski <[email protected]> |
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Description: read only |
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Space separated list of flash faults that may have occurred. |
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Flash faults are re-read after strobing the flash. Possible |
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flash faults: |
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* led-over-voltage |
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flash controller voltage to the flash LED |
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has exceeded the limit specific to the flash controller |
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* flash-timeout-exceeded |
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the flash strobe was still on when |
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the timeout set by the user has expired; not all flash |
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controllers may set this in all such conditions |
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* controller-over-temperature |
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the flash controller has |
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overheated |
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* controller-short-circuit |
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the short circuit protection |
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of the flash controller has been triggered |
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* led-power-supply-over-current |
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current in the LED power |
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supply has exceeded the limit specific to the flash |
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controller |
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* indicator-led-fault |
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the flash controller has detected |
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a short or open circuit condition on the indicator LED |
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* led-under-voltage |
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flash controller voltage to the flash |
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LED has been below the minimum limit specific to |
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the flash |
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* controller-under-voltage |
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the input voltage of the flash |
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controller is below the limit under which strobing the |
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flash at full current will not be possible; |
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the condition persists until this flag is no longer set |
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* led-over-temperature |
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the temperature of the LED has exceeded |
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its allowed upper limit
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