drm_dbg_printer(9)

💅 drm_dbg_printer(9) — Kernel API Manual, bestie edition 🎀

okay so picture this: you're deep in kernel land, you're working with DRM, and you need a &drm_printer that's specifically wired up for drm device specific output. that's literally it. that's the whole ~vibe~ of drm_dbg_printer. no cap. 🦋

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✨ SYNOPSIS ✨

struct drm_printer drm_dbg_printer (struct drm_device *drm , enum
drm_debug_category category , const char *prefix );

look at her. iconic signature. she takes three arguments and hands you back a struct drm_printer. slay. 👑

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🌸 ARGUMENTS 🌸

• drm — the struct drm_device pointer, or NULL. yes bestie, NULL is allowed, she's flexible like that 🫶
• category — the debug category to use. it's the enum drm_debug_category one, so pick your fighter 💅
• prefix — debug output prefix, or NULL for no prefix. pass NULL if you're feeling minimal, no judgment 😌

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⭐ RETURN ⭐

The struct drm_printer object. that's the whole return value. you get a printer, you go print things, you live your truth. periodt. 💖

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ngl, the argument named drm being allowed to be NULL is lowkey the most important detail here — don't come for me if you forget it. 🙈

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🔥 SEE ALSO 🔥

the whole friend group, fr fr:

• Kernel file ./include/drm/drm_print.h
• print(9)
• enum drm_debug_category(9)
• struct drm_printer(9)
• drm_vprintf(9)
• drm_printf_indent(9)
• struct drm_print_iterator(9)
• drm_coredump_printer(9)
• drm_coredump_printer_is_full(9)
• drm_seq_file_printer(9)
• drm_info_printer(9)
• drm_err_printer(9)
• drm_line_printer(9)
• DRM_DEV_ERROR(9)
• DRM_DEV_ERROR_RATELIMITED(9)
• DRM_DEV_DEBUG(9)
• DRM_DEV_DEBUG_DRIVER(9)
• DRM_DEV_DEBUG_KMS(9)

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and that's the page!! 🧚 this one lives over in ./include/drm, it's dated October 2026, and it's part of the Kernel API Manual — go read it again if you forgot anything, i'll wait 💜🌸

okay bye bestie, go construct some printers responsibly 💅✨🦋