nal_hevc_read_pps(9)

💖 nal_hevc_read_pps — bestie edition 💖

okay so this is a page from the Kernel API Manual, section 9 (the kernel interfaces girlies), and it's literally all about nal_hevc_read_pps. come sit with me, this one's short and sweet 🎀

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✨ NAME ✨

nal_hevc_read_pps — read a PPS NAL unit straight out of RBSP format. that's it, that's the whole job, and she does it flawlessly 💅

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🦋 SYNOPSIS 🦋

ssize_t nal_hevc_read_pps (const struct device *dev , struct
nal_hevc_pps *pps , void *src , size_t n );

look at that signature. four args, one ssize_t return. chef's kiss 🔥

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🌸 ARGUMENTS 🌸

• dev — the device pointer. yes bestie, the actual device, she needs to know who she's working with 🫶
• pps — the struct nal_hevc_pps that gets filled up from the RBSP data. she's the main character here, the whole point of the operation 👑
• src — the buffer holding the RBSP data. this is where we're reading from ✨
• n — size of src, in bytes. gotta know how much we're working with, no cap 💜

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💀 DESCRIPTION 💀

so here's the vibe: read RBSP data from src, and use it to fill pps. that's literally it. lowkey iconic for how simple it is 🧚

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⭐ RETURN ⭐

• the number of bytes read from src 💖
• or a negative error code 😭 (ngl, when you see a negative, that's your sign something went sideways)

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🌈 SEE ALSO 🌈

the kernel file ./drivers/media/platform/allegro-dvt/nal-hevc.c — go read her, she's the source of truth 📖

and the whole NAL fam, all linked up:

• nal_hevc_write_vps(9)
• nal_hevc_read_vps(9)
• nal_hevc_write_sps(9)
• nal_hevc_read_sps(9)
• nal_hevc_write_pps(9)
• nal_hevc_write_filler(9)
• nal_hevc_read_filler(9)

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ok that's the whole page bestie, nothing hidden, nothing skipped, we ate and left no crumbs 🍓

mwah 💋 this was ./drivers/media/platform/alleg..., dated October 2026, and yes the page name is still nal_hevc_read_pps(9) — go forth and read those PPS NAL units 🦋✨