jpeg_v4_0_3...ing_set_wptr(9)

💅 jpeg_v4_0_3_dec_ring_set_wptr — kernel API manual, section 9, bestie

Okay so before we even get into it — this is a section 9 kernel API page, the jpeg_v4_0_3_dec_ring_set_wptr(9) one, and honestly it's a shortie but a goodie. Let's get into it ✨

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✨ NAME ✨

jpeg_v4_0_3_dec_ring_set_wptr — set write pointer, that's it, that's the whole thing 🎀

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🌸 SYNOPSIS 🌸

void jpeg_v4_0_3_dec_ring_set_wptr (struct amdgpu_ring *ring );

Like, it returns void. Nothing back. No little receipt, no "thanks bestie" — it just does its thing and dips 💅

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🦋 ARGUMENTS 🦋

• ring — an amdgpu_ring pointer, periodt. That's the one and only thing you're handing over 🫶

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💖 DESCRIPTION 💖

So what does it do? It commits the write pointer to the hardware. That's the whole vibe check: the write pointer gets committed, the hardware gets told, and everybody moves on with their lives ✨

No cap, that's genuinely the entire description. Sometimes a function is just a function 😭

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👑 SEE ALSO 👑

• Kernel file ./drivers/gpu/drm/amd/amdgpu/jpeg_v4_0_3.c — the literal source, go read it if you're that kind of main character 🔥
• jpeg_v4_0_3_early_init(9)
• jpeg_v4_0_3_sw_init(9)
• jpeg_v4_0_3_sw_fini(9)
• jpeg_v4_0_3_hw_init(9)
• jpeg_v4_0_3_hw_fini(9)
• jpeg_v4_0_3_suspend(9)
• jpeg_v4_0_3_resume(9)
• jpeg_v4_0_3_start(9)
• jpeg_v4_0_3_stop(9)
• jpeg_v4_0_3_dec_ring_get_rptr(9)
• jpeg_v4_0_3_dec_ring_get_wptr(9)
• jpeg_v4_0_3_dec_ring_insert_start(9)
• jpeg_v4_0_3_dec_ring_insert_end(9)
• jpeg_v4_0_3_dec_ring_emit_fence(9)
• jpeg_v4_0_3_dec_ring_emit_ib(9)

Like yes, that's a whole friend group of jpeg_v4_0_3 functions and they all ate 💅

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ngl the whole page is basically a vibe: one argument, one job, one void. Iconic behaviour, zero notes 💀

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and that's the page!! 🧚 this cutie came from ./drivers/gpu/drm/amd/amdgpu and it's dated October 2026 — mwah, see u in the next one 💜🎀