ishtp_cl_rx_get_rb(9)

💅 ishtp_cl_rx_get_rb — a whole vibe check for your rx buffer list

okay so this is a page from the Kernel API Manual bestie, literally the ishtp_cl_rx_get_rb(9) entry, and it is short and sweet and honestly kind of iconic for it. stay with me, it's like four lines of actual content but we're gonna make it make sense 💖

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✨ NAME ✨

ishtp_cl_rx_get_rb — get a rb from the client device rx buffer list 🎀

like, you're reaching into the list and pulling one out. that's the whole job. slay.

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🌸 SYNOPSIS 🌸

struct ishtp_cl_rb * ishtp_cl_rx_get_rb (struct ishtp_cl *cl );

so it takes one pointer in, hands you a struct ishtp_cl_rb * back. simple queen behavior 👑

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🫶 ARGUMENTS 🫶

• cl — pointer to the client device instance. yes it's just a pointer. yes you still have to pass it. no you can't skip it 🙈

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🎀 DESCRIPTION 🎀

okay so here's what's actually happening: it checks the client device's in-processing buffer list and gets a rb from it. that's it. that's the function. it looks at the list, and it takes a rb out of it. no cap, that is genuinely the entire description and honestly? respect. the docs said what they said and left 💅

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⭐ RETURN ⭐

• gives you the rb pointer if the buffer list isn't empty ✨
• gives you NULL if it is empty 💀

so fr fr, always check your return value before you go dereferencing like a main character. the NULL is out here waiting to humble you.

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🦋 SEE ALSO 🦋

the kernel file this all lives in:

./drivers/hid/intel-ish-hid/ishtp/client-buffers.c

and the whole friend group of related functions, go say hi to all of them 🫶

• ishtp_cl_alloc_rx_ring(9)
• ishtp_cl_alloc_tx_ring(9)
• ishtp_cl_free_rx_ring(9)
• ishtp_cl_free_tx_ring(9)
• ishtp_io_rb_free(9)
• ishtp_io_rb_init(9)
• ishtp_io_rb_alloc_buf(9)
• ishtp_cl_io_rb_recycle(9)

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bestie note: this page lives at ./drivers/hid/intel-ish-hid/ishtp in the kernel tree, so like… that's where the lore comes from. iykyk 🌈

and that's the whole page!! short, sweet, gets a rb out of a list. obsessed. this has been ishtp_cl_rx_get_rb(9) from the Kernel API Manual, dated October 2026, source path ./drivers/hid/intel-ish-hid/ishtp — mwah, go read the SEE ALSOs, periodt 🧚💜