ns87415_bmdma_start(9)

🎀 NAME 🎀

okay so welcome to the ns87415_bmdma_start page from the Kernel API Manual, bestie 💖 — this one is all about Begin DMA transfer ✨

✨ SYNOPSIS ✨

void ns87415_bmdma_start (struct ata_queued_cmd *qc );

💅 ARGUMENTS 💅

• qc — Command block 🎀 literally the command block, that’s the whole vibe.

🦋 DESCRIPTION 🦋

So here’s the tea ☕: this function switches the timings for the chip and sets everything up for a DMA transfer before the DMA burst begins 💫

⚠️ FIXME: We should do lazy switching on bmdma_start versus ata_pio_data_xfer for better performance. 👀

🌈 SEE ALSO 🌈

• Kernel file ./drivers/ata/pata_ns87415.c — the main-character file, iykyk 📁✨
• ns87415_set_mode(9)
• ns87415_set_piomode(9)
• ns87415_bmdma_setup(9)
• ns87415_bmdma_stop(9)
• ns87415_irq_clear(9)
• ns87415_check_atapi_dma(9)
• ns87560_read_buggy(9)
• ns87560_check_status(9)
• ns87560_tf_read(9)
• ns87560_bmdma_status(9)
• ns87415_init_one(9)

mwah 💋 this little page is signed off from ./drivers/ata, dated October 2026, and it’s absolutely serving ns87415_bmdma_start(9) energy 👑💖