'\" t .\" Title: drm_dp_dpcd_read_link_status .\" Author: .\" Generator: DocBook XSL Stylesheets v1.78.1 .\" Date: May 2018 .\" Manual: DRM Core .\" Source: Kernel Hackers Manual 3.16.56 .\" Language: English .\" .TH "DRM_DP_DPCD_READ_LIN" "9" "May 2018" "Kernel Hackers Manual 3\&.16\&" "DRM Core" .\" ----------------------------------------------------------------- .\" * Define some portability stuff .\" ----------------------------------------------------------------- .\" ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ .\" http://bugs.debian.org/507673 .\" http://lists.gnu.org/archive/html/groff/2009-02/msg00013.html .\" ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ .ie \n(.g .ds Aq \(aq .el .ds Aq ' .\" ----------------------------------------------------------------- .\" * set default formatting .\" ----------------------------------------------------------------- .\" disable hyphenation .nh .\" disable justification (adjust text to left margin only) .ad l .\" ----------------------------------------------------------------- .\" * MAIN CONTENT STARTS HERE * .\" ----------------------------------------------------------------- .SH "NAME" drm_dp_dpcd_read_link_status \- read DPCD link status (bytes 0x202\-0x207) .SH "SYNOPSIS" .HP \w'int\ drm_dp_dpcd_read_link_status('u .BI "int drm_dp_dpcd_read_link_status(struct\ drm_dp_aux\ *\ " "aux" ", u8\ " "status[DP_LINK_STATUS_SIZE]" ");" .SH "ARGUMENTS" .PP \fIaux\fR .RS 4 DisplayPort AUX channel .RE .PP \fIstatus[DP_LINK_STATUS_SIZE]\fR .RS 4 buffer to store the link status in (must be at least 6 bytes) .RE .SH "DESCRIPTION" .PP Returns the number of bytes transferred on success or a negative error code on failure\&. .SH "AUTHORS" .PP \fBJesse Barnes\fR <\&jesse.barnes@intel.com\&> .br Intel Corporation, .RS 4 Initial version .RE .PP \fBLaurent Pinchart\fR <\&laurent.pinchart@ideasonboard.com\&> .br Ideas on board SPRL, .RS 4 Driver internals .RE .PP \fBDaniel Vetter\fR <\&daniel.vetter@ffwll.ch\&> .br Intel Corporation, .RS 4 Contributions all over the place .RE .SH "COPYRIGHT" .br