snd_seq_kernel_client_ctl(9)

💅 snd_seq_kernel_client_ctl — a lil' page from the Kernel API Manual ✨

okay so bestie, welcome to the group chat 💖 this one's a kernel API page, and honestly? she's short, she's sweet, and she's giving "small function, big responsibility" energy. let's get into it 🫶

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🌸 NAME 🌸

snd_seq_kernel_client_ctl — operate a command for a client, with the data chillin' in kernel space ✨

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🦋 SYNOPSIS 🦋

int snd_seq_kernel_client_ctl (int clientid , unsigned int cmd , void *arg );

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🎀 ARGUMENTS 🎀

• clientid — a numerical ID for a client. like, a number, bestie, that's the whole vibe 🔢
• cmd — an ioctl(2) command for an ALSA sequencer operation. yeah, it's that kind of command 💅
• arg — a pointer to data in kernel space. and like… please keep it in kernel space, we'll get to that 👀

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💜 DESCRIPTION 💜

okay so here's the plot twist: against its name — yes, the name is literally snd_seq_kernel_client_ctl — both kernel and application client can be handled by this kernel API. the way that it's more inclusive than it sounds?? we love to see it 🌈

and the one thing to not sleep on: a pointer of the arg argument should be in kernel space. like, that's the rule, no cap 🙈

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⭐ RETURN ⭐

• 0 at success 🎉 slay
• negative error code at failure 😭 that's it, that's the whole scale

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🔥 SEE ALSO 🔥

• Kernel file ./sound/core/seq/seq_clientmgr.c — go read her, she knows everything iykyk 👑

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ngl this page is short but she ate, periodt. just remember: kernel space pointer, every time 💀

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💖 that's the whole page, bestie! 💖 this one's signed off from ./sound/core/seq, dated October 2026, mwah 😘 🦋✨