is_intel_ider(9)

💖 is_intel_ider(9) 💖

Okay so bestie, welcome to the Kernel API Manual — this page is literally about spotting Intel IDE-R devices, and it's giving detective energy. No cap. 🦋

🌸 NAME 🌸

is_intel_ider — identify intel IDE-R devices 💅

✨ SYNOPSIS ✨

int is_intel_ider (struct pci_dev *dev );

🎀 ARGUMENTS 🎀

• dev — a PCI device. That's the whole argument, bestie, we love a simple queen. 🫶

💜 DESCRIPTION 💜

Okay so the main quest: this function distinguishes Intel IDE-R controller devices from other Intel IDE devices. Main character behavior, honestly. ✨

IDE-R devices have no timing registers and are in most respects virtual. They should be driven by the ata_generic driver. Slay. 💅

Here's the little vibe check it does, fr fr:

• IDE-R devices have PCI offset 0xF8.L as zero.
• Later Intel ATA has it non zero. 👀
• All Intel ATA has 0x40 writable (timing), but it is not writable on IDE-R devices (this is guaranteed). 🔥

Tiny reminder from the page: IDE-R devices are in most respects virtual, and they should be driven by ata_generic. Don't forget that part, bestie. 🎀

🌈 SEE ALSO 🌈

• Kernel file ./drivers/ata/ata_generic.c
• generic_set_mode(9)
• ata_generic_init_one(9)

mwah 💋 source/version is ./drivers/ata, date is October 2026, and the page is is_intel_ider(9). Byeeee 🫶✨