snd_ump_receive_ump_val(9)

🌸 NAME 🌸

<pink>snd_ump_receive_ump_val</pink> — parse the UMP packet data ✨

Okay so this is the page for snd_ump_receive_ump_val(9) in the Kernel API Manual, and her whole personality is parsing UMP packet data. No cap, that's the gig, bestie. 💅

✨ SYNOPSIS ✨

int snd_ump_receive_ump_val (struct snd_ump_endpoint *ump , u32 val );

🎀 ARGUMENTS 🎀

• ump — the UMP endpoint, periodt. This is the endpoint you're working with.
• val — the UMP packet data. The data goes in here, and it's giving packet-core energy.

🦋 DESCRIPTION 🦋

Okay so here's the tea: the data is copied onto ump->input_buf[]. That's the field, that's where it lands, no drama. 🫶

When a full packet is completed, the function returns the number of words — from 1 to 4. Lowkey iconic. On the other hand, if the packet is incomplete, it returns 0. OTOH, bestie: no full packet, no word count, just 0. 💀

🌈 SEE ALSO 🌈

If you're going down the UMP rabbit hole, these are the other pages and the kernel file you're gonna want in your tabs:

• Kernel file ./sound/core/ump.c
• snd_ump_endpoint_new(9)
• snd_ump_receive(9)
• snd_ump_transmit(9)
• snd_ump_block_new(9)
• snd_ump_switch_protocol(9)
• snd_ump_parse_endpoint(9)

mwah 💋 source/version is ./sound/core, dated October 2026, and the page is snd_ump_receive_ump_val(9) — bestie, you're gonna slay this UMP packet situation fr fr 🎀🦋