it821x_smart_set_mode(9)

✨ NAME ✨

okay so bestie, this is it821x_smart_set_mode(9) — mode setting — from the Kernel API Manual 💅 it’s a whole little function page and it is lowkey iconic because it refuses to be tuned. It’s giving hands-off main character energy 🫶

🎀 SYNOPSIS 🎀

int it821x_smart_set_mode (struct ata_link *link , struct ata_device
       **unused );

🌸 ARGUMENTS 🌸

• link — the interface to set up, aka the thing we’re configuring ✨
• unused — the device that failed (error only), so it’s only relevant when something has gone wrong 😭

🦋 DESCRIPTION 🦋

okay so the whole point: use a non standard set_mode function. We do not want to be tuned. The BIOS already configured everything. Our job is not to fiddle. Periodt 💀

Instead, we read the dma enabled bits from the PCI configuration of the device and we respect them. No cap — that’s the vibe. Respect the bits and leave them alone 🫶

💖 SEE ALSO 💖

Kernel file: ./drivers/ata/pata_it821x.c — plus all these besties:

• it821x_program(9)
• it821x_program_udma(9)
• it821x_clock_strategy(9)
• it821x_passthru_set_piomode(9)
• it821x_passthru_set_dmamode(9)
• it821x_passthru_bmdma_start(9)
• it821x_passthru_bmdma_stop(9)
• it821x_passthru_dev_select(9)
• it821x_smart_qc_issue(9)
• it821x_passthru_qc_issue(9)
• it821x_dev_config(9)
• it821x_read_id(9)
• it821x_check_atapi_dma(9)
• it821x_display_disk(9)
• it821x_firmware_command(9)
• it821x_probe_firmware(9)
• it821x_port_start(9)
• it821x_rdc_cable(9)

mwah 💋 — source: ./drivers/ata; version vibe: Kernel API Manual; page: it821x_smart_set_mode(9); date: October 2026 🌈