zynqmp_disp..._live_format(9)

💅 zynqmp_disp..._live_format(9) — the kernel API manual, bestie edition

okay so you're in the Kernel API Manual and the page you landed on is zynqmp_disp..._live_format(9). yes the title is truncated, no that's not a you problem, it's just how the man page renders 💀 anyway. sit down, hydrate, and let's get into it 🍓

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✨ NAME ✨

zynqmp_disp_layer_set_live_format — sets the live video layer format. that's it, that's the whole job. icon behavior honestly 👑

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🌸 SYNOPSIS 🌸

void zynqmp_disp_layer_set_live_format (struct zynqmp_disp_layer *layer
, u32 media_bus_format );

returns void (so like… nothing comes back, it just does the thing), and it takes two args. keep scrolling for the tea ☕

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🎀 ARGUMENTS 🎀

• layer — the layer. yes, THE layer. the struct zynqmp_disp_layer * in question, the main character of this function 🫶
• media_bus_format — the media bus format you want to set. type is u32, and it's literally the format you're handing over ✨

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💖 NOTE 💖

read this part, bestie, it's the vibe check of the whole page 🙈

fr fr: this function should not be used to set format for non-live video layer. like, don't. if you've got a non-live layer, use zynqmp_disp_layer_set_format instead — that's the correct tool for that job, no cap.

what it actually does: sets the display format for the live layer.

and the one condition, non-negotiable, no exceptions: the layer must be disabled. if it's still enabled, you're not doing this. turn it off first 💀

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🌈 SEE ALSO 🌈

kernel file ./drivers/gpu/drm/xlnx/zynqmp_disp.c — plus the enum family, and honestly the whole friend group is listed below so you can go read all of them:

• zynqmp_dpsub_layer_mode(9)
• struct zynqmp_disp_format(9)
• struct zynqmp_disp_layer_dma(9)
• struct zynqmp_disp_layer_info(9)
• struct zynqmp_disp_layer(9)
• struct zynqmp_disp(9)
• zynqmp_disp_avbuf_set_format(9)
• zynqmp_disp_avbuf_set_clocks_sources(9)
• zynqmp_disp_avbuf_enable_channels(9)
• zynqmp_disp_avbuf_disable_channels(9)
• zynqmp_disp_avbuf_enable_audio(9)
• zynqmp_disp_avbuf_disable_audio(9)
• zynqmp_disp_avbuf_enable_video(9)
• zynqmp_disp_avbuf_disable_video(9)
• zynqmp_disp_avbuf_enable(9)
• zynqmp_disp_avbuf_disable(9)
• zynqmp_disp_blend_set_output_format(9)
• zynqmp_disp_blend_set_bg_color(9)
• zynqmp_disp_blend_set_global_alpha(9)
• zynqmp_disp_blend_layer_set_csc(9)
• zynqmp_disp_blend_layer_enable(9)
• zynqmp_disp_blend_layer_disable(9)
• zynqmp_disp_layer_find_format(9)
• zynqmp_disp_layer_find_live_format(9)
• zynqmp_disp_layer_drm_formats(9)
• zynqmp_disp_live_layer_formats(9)
• zynqmp_disp_layer_enable(9)
• zynqmp_disp_layer_disable(9)
• zynqmp_disp_layer_set_format(9)
• zynqmp_disp_layer_update(9)
• zynqmp_disp_layer_release_dma(9)
• zynqmp_disp_destroy_layers(9)
• zynqmp_disp_layer_request_dma(9)
• zynqmp_disp_create_layers(9)
• zynqmp_disp_enable(9)
• zynqmp_disp_disable(9)
• zynqmp_disp_setup_clock(9)

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and that's the page!! mwah 💋 cute lil sign-off time: this one lives in ./drivers/gpu/drm/xlnx, and the date on it is October 2026 — so yeah, she's from the future, we stan a forward-thinking man page ⭐👑 bye bestie, go disable that layer first 🧚💜