ali_20_filter(9)

okay bestie, this is ali_20_filter(9) from the Kernel API Manual — and yes, we’re getting into the earlier ALI DMA filter lore 🎀✨

🌸 NAME 🌸

ali_20_filter — filter for earlier ALI DMA 💅

✨ SYNOPSIS ✨

unsigned int ali_20_filter (struct ata_device *adev , unsigned int mask
);

🎀 ARGUMENTS 🎀

• adev — ATA device 🫶
• mask — received mask to manipulate and pass back ✨

💅 DESCRIPTION 💅

okay so the whole vibe here is: ensure that we do not do DMA on CD devices. We may be able to fix that later on, no cap. Also ensure we do not do UDMA on WDC drives. periodt 💀

🦋 SEE ALSO 🦋

Kernel file ./drivers/ata/pata_ali.c — and the whole squad: ali_c2_cable_detect(9), ali_fifo_control(9), ali_program_modes(9), ali_set_piomode(9), ali_set_dmamode(9), ali_warn_atapi_dma(9), ali_lock_sectors(9), ali_check_atapi_dma(9), ali_init_chipset(9), ali_init_one(9) 🌈

xoxo, your local kernel bestie 💖 source/version: ./drivers/ata · date: October 2026 · page: ali_20_filter(9) 🫶