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To: gentoo-dev@g.o
From: Matthias Schwarzott <zzam@g.o>
Subject: About udev-145: new features / extras and kernel requirements
Date: Sun, 30 Aug 2009 16:11:52 +0200
Hi there!

The new udev-145 and newer have some new kernel requirements. How should the 
ebuild verify they are met?
Some possible ways:
1. Check config under /usr/src/linux
2. Check /proc/config.gz
3. Print message for user in pkg_postinst



Second point: udev-145 bundles a lot of new extras, but they can only be 
enabled/disabled all or nothing.

These extras are:
* udev-acl: Apply consolekit permissions to devices for users (audio, video, 
joysticks, scanner, cameras, ...)
* usb-db: Provide udev-rules with device names of pci and usb devices
* hid2hci: Special utility to fix resume of some hid devices
* keymap: Auto-configure model specific keys found on many laptops 
("brightness up", "next song", "www browser", or "suspend")
* modem-modeswitch: Switch modems that provide virtual cd-drive with drivers 
to modem mode
* gudev: glib/gobject support for libudev

This makes udev depend on these libs:
libacl, libglib2, libusb, usbutils, pciutils, gperf

Up to now I have just added use-flag "extras" to control these. But I suppose 
that udev-acl and maybe gudev is a hard requirement for newer hal or 
devicekit versions. And upstream thinks these should be enabled by default.

Are any of these extras considered harmful?

Regards
Matthias


Replies:
Re: About udev-145: new features / extras and kernel requirements
-- Daniel Drake
Re: About udev-145: new features / extras and kernel requirements
-- Mart Raudsepp
Re: About udev-145: new features / extras and kernel requirements
-- Bruno
Re: About udev-145: new features / extras and kernel requirements
-- Nirbheek Chauhan
Re: About udev-145: new features / extras and kernel requirements
-- Arun Raghavan
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Updated Jun 29, 2012

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