stm32fx_spi_...sfer_one_irq(9)

💅 stm32fx_spi_transfer_one_irq(9) — Kernel API Manual 🎀

okay so bestie, we're in the Linux kernel docs, the Kernel API Manual section, and today's main character is a little function that moves exactly one SPI transfer using interrupts. no DMA nonsense, no polling, just vibes and IRQs ✨

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✨ NAME ✨

stm32fx_spi_transfer_one_irq — transfer a single spi_transfer using interrupts 🫶

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🌸 SYNOPSIS 🌸

int stm32fx_spi_transfer_one_irq (struct stm32_spi *spi );

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🦋 ARGUMENTS 🦋

• spi — pointer to the spi controller data structure. yes it's the whole controller, not a transfer object, don't come for me 💅

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⭐ DESCRIPTION ⭐

so like, the entire personality of this function is its return value, and it must return 0 if the transfer is finished, or 1 if the transfer is still in progress. that's it, that's the whole deal 🔥

bestie pls respect the contract: it must return 0 when the transfer is done and 1 when it's still in progress. no in-between, no -EAGAIN shenanigans here 🙈

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👑 SEE ALSO 👑

Kernel file ./drivers/spi/spi-stm32.c plus this whole friend group of kernel symbols, all (9)-coded:

• 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)
• 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)
• stm32f4_spi_set_bpw(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)

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🌈 the cute lil sign-off 🌈

this page lives in ./drivers/spi, dated October 2026, and it's page stm32fx_spi_...sfer_one_irq(9) of the Kernel API Manual — go read the actual source bestie, it's giving iconic 💖🧚‍♀️