ESP(4)

📦 version 12.2, in debian bookworm, debian trixie, ubuntu jammy, ubuntu noble, ubuntu questing, ubuntu resolute, ubuntu stonking

💖 ESP(4) — the esp manual, bestie edition 💖

okay so welcome to esp(4), from the Kernel Interfaces Manual, and honestly? she's an icon. sit down, grab a strawberry, we're gonna talk about SCSI controllers and we're gonna have fun doing it 🍓✨

✨ NAME ✨

esp — the driver for SCSI controllers based on the Emulex ESP, NCR 53C9x and QLogic FAS families 💅

🌸 SYNOPSIS 🌸

so like. if you wanna bake this driver right into your kernel, you drop these lines into your kernel configuration file:

device scbus
device esp

or — if you're feeling lazy-in-a-good-way and you'd rather just load it as a module at boot time — put this line in loader.conf(5):

if_esp_load="YES"

periodt. that's the whole vibe. 🎀

🦋 DESCRIPTION 🦋

the esp driver is out here providing support for a whole little squad of SCSI controller chips, and it's giving range, honestly. we're talking:

  • the AMD Am53C974
  • the Emulex ESP100, ESP100A, ESP200 and ESP406
  • the NCR 53C90, 53C94 and 53C96
  • and the QLogic FAS100A, FAS216, FAS366 and FAS408

and where do these little guys live? in a wide variety of systems and peripheral boards, no cap. they're everywhere. they're the background characters of your hardware that are actually main character energy. 👑

🌈 HARDWARE 🌈

here's the roster of controllers that esp has got your back on:

  • Sun ESP family ☀️
  • Sun FAS family ☀️
  • Tekram DC390
  • Tekram DC390T

slay. all of them. 🫶

👀 SEE ALSO 👀

go read these next, iykyk:

📜 HISTORY 📜

the esp driver first appeared in NetBSD 1.3. and the first FreeBSD version to include it? FreeBSD 5.3. a glow-up journey fr fr 💜

💫 AUTHORS 💫

the esp driver was ported to FreeBSD by Scott Long <scottl@FreeBSD.org> — and then later on, it got considerably improved by Marius Strobl <marius@FreeBSD.org>. kings. absolute kings. 👑

💀 BUGS 💀

okay so there's one thing and we have to be honest about it:

the esp driver should read the EEPROM settings of Tekram controllers.

it just... doesn't yet. noted. on the list. 🙈

and that's the whole page bestie!! this one came from the Debian build of the manual, dated November 1, 2011 — old but iconic, we respect our elders 💖✨🎀

📦 where this page comes from