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HAL_Video_SetPowerSave
Hardware Abstraction Layer
HAL entry points from RISC OS
ยป HAL_Video_SetPowerSave
HAL_Video_SetPowerSave
(HAL entry #45)
void HAL_Video_SetBlank(uint powersave)
| Entry | |
|---|---|
| blank | 0 or 1 for power save off or on |
| (all other values reserved) |
| Exit | |
|---|---|
| - |
Use
This is an internal call for OS use only and should not be used by user software. User software should use GraphicsV instead of interacting with the HAL directly.
The HAL is expected to perform any reasonable measures on the video controller to save power (eg. turn off DACs), when the display is assumed not to be required. Blanking is handled by a separate call.
(What does this really mean. What is acceptable and safe for displays?)