stm32f4_spi_set_bpw(9)

💅 stm32f4_spi_set_bpw — from the Kernel API Manual

okay so bestie, welcome to the Kernel API Manual, and today's main character is stm32f4_spi_set_bpw(9). it's a tiny little function, no cap, but it does exactly one thing and it does it slayfully ✨

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✨ NAME ✨

stm32f4_spi_set_bpw — configure bits per word 🎀

like, literally just bits per word. that's the whole vibe.

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🌸 SYNOPSIS 🌸

void stm32f4_spi_set_bpw (struct stm32_spi *spi );

that's it. that's the whole signature. she's short, she's sweet, she takes one (1) pointer and returns void because she's not here to give you answers, she's here to configure 💅

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🦋 ARGUMENTS 🦋

• spi — pointer to the spi controller data structure. yes bestie, a pointer, to the struct stm32_spi. that's the whole argument list. hand her the controller struct and let her cook 🔥

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👑 SEE ALSO 👑

okay this is the part where the manpage goes absolutely feral with the cross-references — there are so many and i'm listing every single one because we don't skip. periodt. 💖

• the Kernel file ./drivers/spi/spi-stm32.c — that's where the actual source lives, go read it iykyk
• struct stm32_spi_reg(9)
• struct stm32_spi_regspec(9)
• struct stm32_spi_cfg(9)
• struct stm32_spi(9)
• stm32h7_spi_get_fifo_size(9)
• stm32f4_spi_get_bpw_mask(9)
• stm32f7_spi_get_bpw_mask(9)
• stm32h7_spi_get_bpw_mask(9)
• stm32mp25_spi_get_bpw_mask(9)
• stm32_spi_prepare_mbr(9)
• stm32h7_spi_prepare_fthlv(9)
• stm32f4_spi_write_tx(9)
• stm32f7_spi_write_tx(9)
• stm32h7_spi_write_txfifo(9)
• stm32f4_spi_read_rx(9)
• stm32f7_spi_read_rx(9)
• stm32h7_spi_read_rxfifo(9)
• stm32_spi_enable(9)
• stm32fx_spi_disable(9)
• stm32h7_spi_disable(9)
• stm32_spi_can_dma(9)
• stm32fx_spi_irq_event(9)
• stm32fx_spi_irq_thread(9)
• stm32h7_spi_irq_thread(9)
• stm32_spi_prepare_msg(9)
• stm32fx_spi_dma_tx_cb(9)
• stm32_spi_dma_rx_cb(9)
• stm32_spi_dma_config(9)
• stm32fx_spi_transfer_one_irq(9)
• stm32h7_spi_transfer_one_poll(9)
• stm32h7_spi_transfer_one_irq(9)
• stm32fx_spi_transfer_one_dma_start(9)
• stm32f7_spi_transfer_one_dma_start(9)
• stm32h7_spi_transfer_one_dma_start(9)
• stm32_spi_prepare_rx_dma_mdma_chaining(9)
• stm32_spi_transfer_one_dma(9)
• stm32f7_spi_set_bpw(9)
• stm32h7_spi_set_bpw(9)
• stm32_spi_set_mbr(9)
• stm32_spi_communication_type(9)
• stm32fx_spi_set_mode(9)
• stm32h7_spi_set_mode(9)
• stm32h7_spi_data_idleness(9)
• stm32h7_spi_number_of_data(9)
• stm32_spi_transfer_one_setup(9)
• stm32_spi_can_poll(9)
• stm32_spi_transfer_one(9)
• stm32_spi_unprepare_msg(9)
• stm32fx_spi_config(9)
• stm32h7_spi_config(9)

ngl that list is giving "the whole friend group showed up to the party" energy 😭 every f4/f7/h7/mp25 variant is in the group chat and they all want to be tagged 🫶

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that's the whole page bestie!! short, sweet, and absolutely iconic of her. mwah 💋

and for the sign-off — this lil beauty comes from the source dir ./drivers/spi, dated October 2026, and she's filed under stm32f4_spi_set_bpw(9) in the Kernel API Manual. go forth and set those bits per word, queen 👑💜