fuchsia.hardware.backlight

PROTOCOLS

Device

Defined in fuchsia.hardware.backlight/backlight.fidl

GetStateNormalized

Gets the current backlight brightness as a percentage value between 0.0 and 1.0

Request

Name	Type

Response

Name	Type
result	Device_GetStateNormalized_Result

SetStateNormalized

Sets the current backlight brightness as a percentage value between 0.0 and 1.0

Request

Name	Type
state	State

Response

Name	Type
result	Device_SetStateNormalized_Result

GetStateAbsolute

Gets the current backlight brightness in nits

Request

Name	Type

Response

Name	Type
result	Device_GetStateAbsolute_Result

SetStateAbsolute

Sets the current backlight brightness in nits

Request

Name	Type
state	State

Response

Name	Type
result	Device_SetStateAbsolute_Result

GetMaxAbsoluteBrightness

Gets the maximum supported backlight brightness in nits, if known. Otherwise returns error ZX_ERR_NOT_SUPPORTED.

Request

Name	Type

Response

Name	Type
result	Device_GetMaxAbsoluteBrightness_Result

STRUCTS

Device_GetStateNormalized_Response

generated

Name	Type	Description	Default
state	State		No default

SomeLongAnonymousPrefix1

generated

anonymous struct

Name	Type	Description	Default
result	Device_GetStateNormalized_Result		No default

SomeLongAnonymousPrefix2

generated

anonymous struct

Name	Type	Description	Default
state	State		No default

Device_SetStateNormalized_Response

generated

Name	Type	Description	Default

SomeLongAnonymousPrefix3

generated

anonymous struct

Name	Type	Description	Default
result	Device_SetStateNormalized_Result		No default

Device_GetStateAbsolute_Response

generated

Name	Type	Description	Default
state	State		No default

SomeLongAnonymousPrefix5

generated

anonymous struct

Name	Type	Description	Default
result	Device_GetStateAbsolute_Result		No default

SomeLongAnonymousPrefix6

generated

anonymous struct

Name	Type	Description	Default
state	State		No default

Device_SetStateAbsolute_Response

generated

Name	Type	Description	Default

SomeLongAnonymousPrefix7

generated

anonymous struct

Name	Type	Description	Default
result	Device_SetStateAbsolute_Result		No default

Device_GetMaxAbsoluteBrightness_Response

generated

Name	Type	Description	Default
max_brightness	float64		No default

SomeLongAnonymousPrefix9

generated

anonymous struct

Name	Type	Description	Default
result	Device_GetMaxAbsoluteBrightness_Result		No default

State

Defined in fuchsia.hardware.backlight/backlight.fidl

Name	Type	Description	Default
backlight_on	bool		No default
brightness	float64	|brightness| can either be: The unitless brightness value on a linear scale where 0.0 is the minimum brightness and 1.0 is the maximum brightness - represents the current / desired brightness as a percentage within the supported range. Used by the |GetStateNormalized| / |SetStateNormalized| calls. Absolute brightness in nits. Used by the |GetStateAbsolute| / |SetStateAbsolute| calls.	No default

UNIONS

Device_GetStateNormalized_Result

generated

Name	Type	Description
response	Device_GetStateNormalized_Response
err	zx/status

Device_SetStateNormalized_Result

generated

Name	Type	Description
response	Device_SetStateNormalized_Response
err	zx/status

Device_GetStateAbsolute_Result

generated

Name	Type	Description
response	Device_GetStateAbsolute_Response
err	zx/status

Device_SetStateAbsolute_Result

generated

Name	Type	Description
response	Device_SetStateAbsolute_Response
err	zx/status

Device_GetMaxAbsoluteBrightness_Result

generated

Name	Type	Description
response	Device_GetMaxAbsoluteBrightness_Response
err	zx/status