Changeset 7bcc1669 for general

Timestamp:

05/07/2006 07:34:22 AM (18 years ago)

Author:

Bruce Dubbs <bdubbs@…>

Branches:

10.0, 10.1, 11.0, 11.1, 11.2, 11.3, 12.0, 12.1, 6.2, 6.2.0, 6.2.0-rc1, 6.2.0-rc2, 6.3, 6.3-rc1, 6.3-rc2, 6.3-rc3, 7.10, 7.4, 7.5, 7.6, 7.6-blfs, 7.6-systemd, 7.7, 7.8, 7.9, 8.0, 8.1, 8.2, 8.3, 8.4, 9.0, 9.1, basic, bdubbs/svn, elogind, gnome, kde5-13430, kde5-14269, kde5-14686, kea, ken/TL2024, ken/inkscape-core-mods, ken/tuningfonts, krejzi/svn, lazarus, lxqt, nosym, perl-modules, plabs/newcss, plabs/python-mods, python3.11, qt5new, rahul/power-profiles-daemon, renodr/vulkan-addition, systemd-11177, systemd-13485, trunk, upgradedb, xry111/intltool, xry111/llvm18, xry111/soup3, xry111/test-20220226, xry111/xf86-video-removal

Children:

d77d8c5

Parents:

dea1509

Message:

Update to libusb configuration.

git-svn-id: svn://svn.linuxfromscratch.org/BLFS/trunk/BOOK@6017 af4574ff-66df-0310-9fd7-8a98e5e911e0

File:

• general/genlib/libusb.xml (modified) (1 diff)

general/genlib/libusb.xml

@@ -143 +143 @@
 -->
 
-    <para id="libusb-kernel">Ensure that you have compiled the <quote>USB device
-    filesystem</quote> directly into the kernel or compiled it as a module
-    (listing the resulting <quote>usbcore</quote> module in the
-    <filename>/etc/sysconfig/modules</filename> file). You should also have an
-    entry similar to the line below in your <filename>/etc/fstab</filename>
-    file:</para>
-
+    <para id="libusb-kernel">To access raw USB devices (those not treated as a
+    disk by the mass-storage driver), appropriate support must be available in
+    the kernel.  Check your kernel configuration for Device Drivers &rArr; USB
+    support &rArr; Support for Host-side USB.  Select any USB hardware device
+    drivers you may need on the same page.</para>
+    
     <indexterm zone="libusb libusb-kernel">
-    <primary sortas="d-USB-device-filesystem">USB device filesystem</primary>
+    <primary sortas="d-USB-device-filesystem">Support for Host-side USB</primary>
     </indexterm>
+    
+    <para>To have USB devices set up properly, add the followng 
+    <application>udev</application> rule and add any users 
+    that need USB devices to the "usb" group.</para>
+    
+<screen><literal>cat &gt; /etc/udev/rules.d/23-usb-rules &lt;&lt; "EOF"
+# Set group ownership for USB devices 
+SUBSYSTEM=="usb_device", \
+PROGRAM="/bin/sh -c 'X=%k X=$${X#usbdev} B=$${X%%%%.*} D=$${X#*.}; \
+echo bus/usb/$$B/$$D'", SYMLINK+="%c", GROUP="usb"
+EOF</literal></screen>
+
+    <para>Fine-tunuing of permissions is also possible by creating extra rules,
+    matching on something like this (on one line).  The vendor and product can
+    be found by searchng the <filename
+    class='directory'>/sys/devices</filename> directory entries after
+    the device has been attached.</para>
+
+<screen><literal>SUBSYSTEM=="usb_device", SYSFS{idVendor}=="05d8", 
+SYSFS{idProduct}=="4002", GROUP:="scanner"</literal></screen>
+
+
+
+    <para>Some older applications need the following deprecated entry in
+    the <filename>/etc/fstab</filename> file.  Do not use it unless you 
+    know its needed.</para>
 
 <screen><literal>usbfs  /proc/bus/usb  usbfs  devgid=14,devmode=0660  0  0</literal></screen>