Lines Matching refs:flash

16 The V4L2 flash controls are intended to provide generic access to flash
20 The interface can support both LED and xenon flash devices. As of
21 writing this, there is no xenon flash driver using this interface.
30 Unsynchronised LED flash (software strobe)
33 Unsynchronised LED flash is controlled directly by the host as the
34 sensor. The flash must be enabled by the host before the exposure of the
36 for the timing of the flash.
41 Synchronised LED flash (hardware strobe)
44 The synchronised LED flash is pre-programmed by the host (power and
46 sensor to the flash.
48 The sensor controls the flash duration and timing. This information
52 LED flash as torch
55 LED flash may be used as torch in conjunction with another use case
68     Defines the mode of the flash LED, the high-power white LED attached
69     to the flash controller. Setting this control may not be possible in
88     Defines the source of the flash LED strobe.
97       - The flash strobe is triggered by using the
100       - The flash strobe is triggered by an external source. Typically
102 	flash strobe start to exposure start.
107     Strobe flash. Valid when V4L2_CID_FLASH_LED_MODE is set to
114     Stop flash strobe immediately.
117     Strobe status: whether the flash is strobing at the moment or not.
121     Hardware timeout for flash. The flash strobe is stopped after this
125     Intensity of the flash strobe when the flash LED is in flash mode
130     Intensity of the flash LED in torch mode
137     independent of the flash LED. The unit should be microamps (uA) if
141     Faults related to the flash. The faults tell about specific problems
142     in the flash chip itself or the LEDs attached to it. Faults may
143     prevent further use of some of the flash controls. In particular,
145     if the fault affects the flash LED. Exactly which faults have such
156       - Flash controller voltage to the flash LED has exceeded the limit
157 	specific to the flash controller.
159       - The flash strobe was still on when the timeout set by the user ---
160 	V4L2_CID_FLASH_TIMEOUT control --- has expired. Not all flash
163       - The flash controller has overheated.
165       - The short circuit protection of the flash controller has been
169 	the flash controller.
171       - The flash controller has detected a short or open circuit
174       - Flash controller voltage to the flash LED has been below the
175 	minimum limit specific to the flash controller.
177       - The input voltage of the flash controller is below the limit under
178 	which strobing the flash at full current will not be possible.The
186     Enable or disable charging of the xenon flash capacitor.
189     Is the flash ready to strobe? Xenon flashes require their capacitors