sis_100_set_piomode(9)

okay bestie, welcome to the sis_100_set_piomode page from the Kernel API Manual, section 9 💅 this is the kernel API moment where we init host controller PATA PIO timings, and yes she ate.

✨ NAME ✨

sis_100_set_piomode — Initialize host controller PATA PIO timings 🎀

🦋 SYNOPSIS 🦋

void sis_100_set_piomode (struct ata_port *ap , struct ata_device *adev
       );

🎀 ARGUMENTS 🎀

• ap — the port whose timings we are configuring 🫶
• adev — the device we are configuring for ✨

🌸 DESCRIPTION 🌸

okay so real talk: this function sets PIO mode for a device, in host controller PCI config space. It handles PIO set up for ATA100 devices and early ATA133. periodt 💅

LOCKING: None (inherited from caller). iykyk 😭

⭐ SEE ALSO ⭐

Kernel file: ./drivers/ata/pata_sis.c — and here’s the full SEE ALSO squad 🦋

• sis_old_port_base(9)
• sis_port_base(9)
• sis_133_cable_detect(9)
• sis_66_cable_detect(9)
• sis_pre_reset(9)
• sis_set_fifo(9)
• sis_old_set_piomode(9)
• sis_133_set_piomode(9)
• sis_old_set_dmamode(9)
• sis_66_set_dmamode(9)
• sis_100_set_dmamode(9)
• sis_133_early_set_dmamode(9)
• sis_133_set_dmamode(9)
• sis_133_mode_filter(9)
• sis_init_one(9)

source/version: ./drivers/ata; date: October 2026 — signed with main character energy, catch u later bestie 💖🫶