STRUCT DRM_DP_AUX_MSG(9)

💖 NAME 💖

okay so bestie, welcome to struct drm_dp_aux_msg(9) from the Kernel API Manual — this is literally the struct for a DisplayPort AUX channel transaction, and she is showing up to do kernel business 💅✨.

🌸 SYNOPSIS 🌸

here's the whole struct, exact and untouched:

       struct drm_dp_aux_msg {
           unsigned int address;
           u8 request;
           u8 reply;
           void *buffer;
           size_t size;
        };

🎀 Members 🎀

• address — address of the (first) register to access.
• request — contains the type of transaction (see DP_AUX_* macros).
• reply — upon completion, contains the reply type of the transaction.
• buffer — pointer to a transmission or reception buffer.
• size — size of buffer.

🦋 SEE ALSO 🦋

The Kernel file listed is ./include/drm/display/drm_dp_helper.h — noted, bestie 🫶.

• struct drm_dp_vsc_sdp(9)
• struct drm_dp_as_sdp(9)
• drm_dp_dsc_sink_supports_format(9)
• drm_edp_backlight_supported(9)
• drm_dp_is_uhbr_rate(9)
• struct drm_dp_aux_cec(9)
• struct drm_dp_aux(9)
• drm_dp_dpcd_readb(9)
• drm_dp_dpcd_read_data(9)
• drm_dp_dpcd_write_data(9)
• drm_dp_dpcd_writeb(9)
• drm_dp_dpcd_read_byte(9)
• drm_dp_dpcd_write_byte(9)
• struct drm_dp_desc(9)
• enum drm_dp_quirk(9)
• drm_dp_has_quirk(9)
• struct drm_edp_backlight_info(9)
• struct drm_dp_phy_test_params(9)

okay bye bestie 🫶 this page came from ./include/drm/display, and the version/date stamp is October 2026 — periodt 💅💖.