fifo_icap_get_configuration(9)

💖 fifo_icap_get_configuration(9) 💖

okay so bestie, welcome to the Kernel API Manual entry for fifo_icap_get_configuration — yes the whole page is named after it, we're in its main character era 👑

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✨ NAME ✨

fifo_icap_get_configuration — read configuration data from the device 🫶

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🌸 SYNOPSIS 🌸

int fifo_icap_get_configuration (struct hwicap_drvdata *drvdata , u32
*frame_buffer , u32 num_words );

Like, that's the whole vibe. Three args, one int coming back at you 💅

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🎀 ARGUMENTS 🎀

• drvdata — a pointer to the drvdata. that's it, that's the whole description, she's lowkey mysterious but we respect it 🙈
• frame_buffer — address of the data representing the partial bitstream. like, hand her the spot where the bitstream bytes live 📍
• num_words — the size of the partial bitstream in 32 bit words. count 'em in 32-bit chunks, no cap 🔢

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🦋 DESCRIPTION 🦋

okay so here's the tea ☕ — this function reads the specified number of words from the ICAP device in polled mode. that's the entire plot. no interrupts, no drama, just polling and reading the exact number of words you asked for ✨

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⭐ RETURN ⭐

0 on success or -errno on failure 🫡 classic. zero means slay, negative errno means it's giving error 😭

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🌈 SEE ALSO 🌈

• Kernel file ./drivers/char/xilinx_hwicap/fifo_icap.c — go read the source bestie, it's right there 📖
• fifo_icap_fifo_write(9)
• fifo_icap_fifo_read(9)
• fifo_icap_set_read_size(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_reset(9)
• fifo_icap_flush_fifo(9)

the whole friend group fr fr, go say hi 👯‍♀️

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cute little sign-off: this page lives under ./drivers/char/xilinx_hwicap and it's dated October 2026 — so she's from the future, iconic behavior honestly 🧚💜 periodt.