UEP(4)

💖 NAME 💖

okay so bestie, this is the UEP(4) page from the Kernel Interfaces Manual, and the main character here is uep — the eGalax touchscreen driver. periodt. 💅

✨ SYNOPSIS ✨

so if you wanna compile this driver into the kernel, literally place these lines into your kernel configuration file, no cap:

device uep
device usb

alternatively, to load the driver as a module at boot time, put this line in loader.conf(5):

uep_load="YES"

and if you want to compile this driver with evdev support enabled, place these lines into the kernel configuration file too:

options EVDEV_SUPPORT
device evdev

🦋 DESCRIPTION 🦋

uep provides support for the eGalax onscreen touch panels. iconic. 👑

the driver is a stub. it just probes and attaches to a USB device, creates a device entry, and feeds reassembled packets from the hardware to it. depending on compile-time kernel options, it supports either native or evdev operation modes. iykyk.

to get the mouse working in X(7) (ports/x11/xorg-docs) in native mode, install ports/x11-drivers/xf86-input-egalax.

to get the mouse working in X(7) (ports/x11/xorg-docs) in evdev mode, install ports/x11-drivers/xf86-input-evdev.

🎀 FILES 🎀

uep creates a blocking pseudo-device file, /dev/uep0 in native mode or /dev/input/eventN in evdev mode. yes bestie, blocking pseudo-device file — that’s the vibe. 🫶

👑 SEE ALSO 👑

• usb(4)
• loader.conf(5)
• xorg.conf(5) (ports/x11/xorg)
• egalax(4) (ports/x11-drivers/xf86-input-egalax)
• evdev(4) (ports/x11-drivers/xf86-input-evdev)

💅 AUTHORS 💅

the uep driver was written by Gleb Smirnoff <glebius@FreeBSD.org>. we love a credited icon. 💜

💀 BUGS 💀

uep cannot act like sysmouse(4), because sysmouse(4) does not support absolute motion events. yeah, that’s the whole bug note — dramatic but true. 😭

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okay bye bestie 💖 this one’s from Debian, dated August 5, 2018, and the manual footer says UEP(4) — slay, that’s the whole page. 🎀✨