opti_set_piomode(9)

okay so bestie, welcome to opti_set_piomode(9) — this page is from the Kernel API Manual, and it is literally about setting initial PIO mode data ✨💅

🌸 NAME 🌸

opti_set_piomode — set initial PIO mode data 🎀

🦋 SYNOPSIS 🦋

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

🎀 ARGUMENTS 🎀

• ap — ATA interface 🫶
• adev — ATA device 💖

✨ DESCRIPTION ✨

So this function is called to do the PIO mode setup, periodt. The timing numbers are taken from the FreeBSD driver and then pre computed to keep the code clean — no cap, that is the whole vibe 🔥.

There are two tables depending on the hardware clock speed 👑.

🔎 SEE ALSO 🔎

• Kernel file ./drivers/ata/pata_opti.c — plus opti_pre_reset(9), opti_write_reg(9) 👀✨

xoxo, signed off from the ./drivers/ata source, dated October 2026 💖🎀🦋