In fast switch mode the adv7180 (and similar) can lock onto a new signal faster when switching between different inputs. As a downside though it is no longer able to auto-detect the incoming format. The fast switch mode is exposed as a boolean v4l control that allows userspace applications to either enable or disable fast switch mode.
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| @@ -170,6 +170,10 @@ enum v4l2_colorfx { · 169 unmodified lines | ||
| 170 | 170 | * We reserve 16 controls for this driver. */ |
| 171 | 171 | #define V4L2_CID_USER_SAA7134_BASE (V4L2_CID_USER_BASE + 0x1060) |
| 172 | 172 | |
| 173 | +/* The base for the adv7180 driver controls. | |
| 174 | + * We reserve 16 controls for this driver. */ | |
| 175 | +#define V4L2_CID_USER_ADV7180_BASE (V4L2_CID_USER_BASE + 0x1070) | |
| 176 | + | |
| 173 | 177 | /* MPEG-class control IDs */ |
| 174 | 178 | /* The MPEG controls are applicable to all codec controls |
| 175 | 179 | * and the 'MPEG' part of the define is historical */ |