fifo_icap_set_read_size(9)

💅 fifo_icap_set_read_size — a kernel API manual moment

okay so bestie, we're diving into the fifo_icap_set_read_size(9) page from the Kernel API Manual and honestly? it's a little one but it matters. This is the function that sets the size register, periodt. 🎀

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✨ SYNOPSIS ✨

void fifo_icap_set_read_size (struct hwicap_drvdata *drvdata , u32 data
);

that's it. that's the whole vibe. a void function, so it gives you nothing back — it just does the thing and dips. 💅

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🌸 ARGUMENTS 🌸

• drvdata — a pointer to the drvdata. yep, that's the descriptor, and you gotta hand it over. 🫶
• data — the size of the following read transaction, in words. lowkey important: in words, not bytes, not vibes. 🍓

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🦋 SEE ALSO 🦋

the kernel file this lives in, for when you want to go read the source yourself (main character energy):

Kernel file ./drivers/char/xilinx_hwicap/fifo_icap.c

and the whole friend group of related calls — go say hi to all of them:

• fifo_icap_fifo_write(9)
• fifo_icap_fifo_read(9)
• fifo_icap_start_config(9)
• fifo_icap_start_readback(9)
• fifo_icap_get_status(9)
• fifo_icap_busy(9)
• fifo_icap_write_fifo_vacancy(9)
• fifo_icap_read_fifo_occupancy(9)
• fifo_icap_set_configuration(9)
• fifo_icap_get_configuration(9)
• fifo_icap_reset(9)
• fifo_icap_flush_fifo(9)

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ngl there's no exit status, no return value, no errors listed here — it's void and it just sets the register. keep it simple, icon. 💖

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and that's the page!! mwah 💋 this little gem comes to you from ./drivers/char/xilinx_hwicap, dated October 2026, and it's literally the fifo_icap_set_read_size(9) manual page — slay, go set some registers bestie 🌈👑