drm_dsc_dp_pps_header_init(9)

💅 drm_dsc_dp_pps_header_init(9) 💅

okay so bestie, this little page lives in the Kernel API Manual, and it’s all about drm_dsc_dp_pps_header_init — the helper that sets up the PPS Header for DisplayPort as per the DP 1.4 spec. It’s giving “small function, very important packet business.” ✨💖

🌸 NAME 🌸

drm_dsc_dp_pps_header_init — Initializes the PPS Header for DisplayPort as per the DP 1.4 spec.

🎀 SYNOPSIS 🎀

void drm_dsc_dp_pps_header_init (struct dp_sdp_header *pps_header );

🫶 ARGUMENTS 🫶

• pps_header — Secondary data packet header for DSC Picture Parameter Set as defined in struct dp_sdp_header. That’s the header struct you’re passing in, bestie, and it’s the one that gets populated. 🎀

✨ DESCRIPTION ✨

okay so the DP 1.4 spec defines the secondary data packet for sending the picture parameter infoframes from the source to the sink. This function populates the SDP header defined in struct dp_sdp_header. So yeah — it handles the header part of that source-to-sink picture-parameter infoframe situation. iconic. 💅

🔥 SEE ALSO 🔥

• Kernel file ./drivers/gpu/drm/display/drm_dsc_helper.c dsc helpers(9)
• drm_dsc_dp_rc_buffer_size(9)
• drm_dsc_pps_payload_pack(9)
• drm_dsc_set_const_params(9)
• drm_dsc_set_rc_buf_thresh(9)
• drm_dsc_setup_rc_params(9)
• drm_dsc_compute_rc_parameters(9)
• drm_dsc_get_bpp_int(9)
• drm_dsc_initial_scale_value(9)
• drm_dsc_flatness_det_thresh(9)
• drm_dsc_dump_config(9)

cute sign-off time: the source/version bit says ./drivers/gpu/drm/display, and the date is October 2026. mwah, bestie 💋🫶