DSC HELPERS(9)

💅 dsc helpers 💅

okay so bestie, this is dsc helpers(9) from the Kernel API Manual — yes, section 9, we are officially in kernel API territory and it is giving helper-function group chat 🫶✨

The VESA specification for DP 1.4 adds a new feature called Display Stream Compression (DSC) used to compress the pixel bits before sending it on the DP/eDP/MIPI DSI interface. DSC is required to be enabled so that the existing display interfaces can support high resolutions at higher frame rates using the maximum available link capacity of these interfaces. no cap, that link capacity is doing a lot of heavy lifting 💅

These functions contain some common logic and helpers to deal with the VESA Display Stream Compression standard required for DSC on Display Port/eDP or MIPI display interfaces. They’re the shared little helper besties for DSC setup, and honestly? obsessed 🦋

🌈 SEE ALSO 🌈

• Kernel file ./drivers/gpu/drm/display/drm_dsc_helper.c — go read the source, bestie, it’s right there in the display directory 📂✨
• drm_dsc_dp_pps_header_init(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)

xoxo, your dsc helpers bestie 💖 — source/version: ./drivers/gpu/drm/display, dated October 2026 🎀