drm_do_get_edid — get EDID data using a custom EDID block read function
struct edid * drm_do_get_edid ( | struct drm_connector * connector, |
int (*get_edid_block)
(void *data, u8 *buf, unsigned int block, size_t len), | |
void * data); |
connectorconnector we're probing
get_edid_blockEDID block read function
dataprivate data passed to the block read function
When the I2C adapter connected to the DDC bus is hidden behind a device that exposes a different interface to read EDID blocks this function can be used to get EDID data using a custom block read function.
As in the general case the DDC bus is accessible by the kernel at the I2C
level, drivers must make all reasonable efforts to expose it as an I2C
adapter and use drm_get_edid instead of abusing this function.