jpeg_v4_0_hw_init(9)

💅 jpeg_v4_0_hw_init(9) — from the Kernel API Manual, bestie ✨

okay so hear me out: this is the manual page for jpeg_v4_0_hw_init, and it's literally the glow-up moment where the JPEG block gets started and tested. two jobs, one function, main character energy fr fr 🎀

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🌸 NAME 🌸

jpeg_v4_0_hw_init — start and test JPEG block

like, that's it. that's the whole vibe. it starts the block and it tests the block. slay 💅

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✨ SYNOPSIS ✨

int jpeg_v4_0_hw_init (struct amdgpu_ip_block *ip_block );

it returns an int, it takes one pointer, and yes the spacing in the parentheses is exactly like that — do not come for me, I'm just the messenger 🫶

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🦋 ARGUMENTS 🦋

• ip_block — Pointer to the amdgpu_ip_block for this hw instance. that's your one (1) input, bestie. it's the ip_block for this specific hardware instance, not some other random one, so pls pass the right one 🙈

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💖 SEE ALSO 💖

your girl did the reading so you don't have to:

• Kernel file ./drivers/gpu/drm/amd/amdgpu/jpeg_v4_0.c — the source, go look at it, it's giving lore 🔥
• jpeg_v4_0_early_init(9)
• jpeg_v4_0_sw_init(9)
• jpeg_v4_0_sw_fini(9)
• jpeg_v4_0_hw_fini(9)
• jpeg_v4_0_suspend(9)
• jpeg_v4_0_resume(9)
• jpeg_v4_0_start(9)
• jpeg_v4_0_stop(9)
• jpeg_v4_0_dec_ring_get_rptr(9)
• jpeg_v4_0_dec_ring_get_wptr(9)
• jpeg_v4_0_dec_ring_set_wptr(9)

that's the whole friend group right there — init, fini, suspend, resume, start, stop, and the dec ring rptr/wptr trio. iykyk 💀✨

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ngl this page is short and sweet, but every single one of those functions above is a real cross-reference — click through, don't just take my word for it 🌈

okay that's the page!! huge thank you to the source ./drivers/gpu/drm/amd/amdgpu and the Kernel API Manual, October 2026 edition — mwah, iconic, no notes 👑💜