Read a single byte from the dpcd
ssize_t drm_dp_dpcd_readb(struct drm_dp_aux * aux, unsigned int offset, u8 * valuep);
aux
DisplayPort AUX channel
offset
address of the register to read
valuep
location where the value of the register will be stored
Returns the number of bytes transferred (1) on success, or a negative error code on failure.
Jesse Barnes <[email protected]>
Intel Corporation,
Initial version
Laurent Pinchart <[email protected]>
Ideas on board SPRL,
Driver internals
Daniel Vetter <[email protected]>
Intel Corporation,
Contributions all over the place