spi_mem_adjust_op_freq(9)

✨ spi_mem_adjust_op_freq(9) ✨

okay so bestie, welcome to the Kernel API Manual entry for spi_mem_adjust_op_freq(9) — yes that's the whole name, yes it's a mouthful, no we're not shortening it 💅

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🌸 NAME 🌸

spi_mem_adjust_op_freq — adjusts the frequency of a SPI mem operation so it matches what the controller, the PCB and the chip can actually handle 🫶

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🦋 SYNOPSIS 🦋

void spi_mem_adjust_op_freq (struct spi_mem *mem , struct spi_mem_op *op );

like… that's it. that's the whole signature. no return value, no drama, just vibes ✨

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🎀 ARGUMENTS 🎀

• mem — the SPI memory. the main character, lowkey 👑
• op — the operation to adjust. this is the one getting a little glow-up 💅

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💖 DESCRIPTION 💖

so here's the tea: some chips have per-op frequency limitations and they must adapt their maximum speed. not optional, not a suggestion — it's giving "respect my limits" energy 😭

this function is the glow-up station 💫 — it lets SPI mem drivers set op->max_freq to the maximum supported value. that's the whole job. get in, set the max freq, get out, slay 🔥

ngl this one's short but it's iconic. small function, big responsibility 🎀

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🌈 SEE ALSO 🌈

the Kernel file in question:

• ./drivers/spi/spi-mem.c

and the rest of the friend group (iykyk) 🫶:

• spi_controller_dma_map_mem_op_data(9)
• spi_controller_dma_unmap_mem_op_data(9)
• spi_mem_supports_op(9)
• spi_mem_exec_op(9)
• spi_mem_get_name(9)
• spi_mem_set_dqs(9)
• spi_mem_has_dqs(9)
• spi_mem_adjust_op_size(9)
• spi_mem_calc_op_duration(9)
• spi_mem_dirmap_create(9)
• spi_mem_dirmap_destroy(9)
• devm_spi_mem_dirmap_create(9)
• devm_spi_mem_dirmap_destroy(9)
• spi_mem_dirmap_read(9)
• spi_mem_dirmap_write(9)
• spi_mem_poll_status(9)
• spi_mem_driver_register_with_owner(9)
• spi_mem_driver_unregister(9)

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and that's the whole page bestie, no cap 💜 this little baddie lives over in ./drivers/spi, stamped October 2026, and yes — it's still spi_mem_adjust_op_freq(9) all the way down to the footer. periodt. 💅✨