bcm2835_spi_dma_rx_done(9)

💅 bcm2835_spi_dma_rx_done — a Kernel API Manual moment

okay bestie, so you're in the Kernel API Manual (yes, that one), and today's main character is bcm2835_spi_dma_rx_done. she's a callback. she's a vibe. let's get into it ✨

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🌸 NAME 🌸

bcm2835_spi_dma_rx_done — the callback for the DMA RX channel</p> 🎀

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✨ SYNOPSIS ✨

void bcm2835_spi_dma_rx_done (void *data );

that's it. that's the whole signature. no cap, she's tiny but she's doing a lot 💅

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🫶 ARGUMENTS 🫶

• data — the SPI host controller. literally just a pointer to it, walking in like it owns the place 👑

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🦋 DESCRIPTION 🦋

so here's the tea: this callback is used for bidirectional and RX-only transfers. that's the whole description, bestie — she shows up for the two-way girlies and the receive-only girlies, and she does not elaborate further. mysterious. iconic. iykyk 💜

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📚 SEE ALSO 📚

the whole friend group, fr fr — go say hi to:

• the Kernel file ./drivers/spi/spi-bcm2835.c
• struct bcm2835_spi(9)
• struct bcm2835_spidev(9)
• bcm2835_rd_fifo_count(9)
• bcm2835_wr_fifo_count(9)
• bcm2835_wait_tx_fifo_empty(9)
• bcm2835_rd_fifo_blind(9)
• bcm2835_wr_fifo_blind(9)
• bcm2835_spi_transfer_prologue(9)
• bcm2835_spi_undo_prologue(9)
• bcm2835_spi_dma_tx_done(9)
• bcm2835_spi_prepare_sg(9)
• bcm2835_spi_transfer_one_dma(9)

no dead links in this group chat, we link everything 💖

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and that's the page! this one lives in ./drivers/spi, dated October 2026, under the Kernel API Manual umbrella 🌈 — mwah, go read the source bestie, ily, bye 🧚‍♀️💜