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DRM_DP_DPCD_READB(9) DRM Core DRM_DP_DPCD_READB(9)

NAME

drm_dp_dpcd_readb - read a single byte from the DPCD

SYNOPSIS

ssize_t drm_dp_dpcd_readb(struct drm_dp_aux * aux, unsigned int offset, u8 * valuep);

ARGUMENTS

aux
DisplayPort AUX channel
offset
address of the register to read
valuep
location where the value of the register will be stored

DESCRIPTION

Returns the number of bytes transferred (1) on success, or a negative error code on failure.

AUTHORS

Jesse Barnes <jesse.barnes@intel.com>
 
Intel Corporation,
Initial version
Laurent Pinchart <laurent.pinchart@ideasonboard.com>
 
Ideas on board SPRL,
Driver internals
Daniel Vetter <daniel.vetter@ffwll.ch>
 
Intel Corporation,
Contributions all over the place

COPYRIGHT

February 2017 Kernel Hackers Manual 3.16