pdc2026x_bmdma_stop(9)

✨ NAME ✨

okay bestie, welcome to the pdc2026x_bmdma_stop(9) page from the Kernel API Manual — it's literally the DMA engine stop manual, and yes, we're gonna make it make sense 💖

pdc2026x_bmdma_stop — DMA engine stop

🌸 SYNOPSIS 🌸

the signature is giving:

void pdc2026x_bmdma_stop (struct ata_queued_cmd *qc );

🎀 ARGUMENTS 🎀

• qc — ATA command 🦋

🦋 DESCRIPTION 🦋

okay so after a DMA completes we need to put the clock back to 33MHz for PIO timings — that's the assignment, no cap 💅

💅 NOTE 💅

the host lock held by the libata layer is literally our bodyguard here: it protects us from two channels both trying to set DMA bits at once 🫶 periodt.

🔥 SEE ALSO 🔥

go give these cuties a read too, iykyk 👑

• Kernel file ./drivers/ata/pata_pdc202xx_old.c
• pdc202xx_configure_piomode(9)
• pdc202xx_set_piomode(9)
• pdc202xx_set_dmamode(9)
• pdc2026x_bmdma_start(9)
• pdc2026x_dev_config(9)
• pdc2026x_check_atapi_dma(9)

mwah 💋 this page comes from the ./drivers/ata source, dated October 2026, and it's the pdc2026x_bmdma_stop(9) manual page — bye bestie, go stop that DMA with main character energy 🌈✨