Errata


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The errata list is a list of errors and their corrections that were found after the product was released.

The following errata were submitted by our customers and have not yet been approved or disproved by the author or editor. They solely represent the opinion of the customer.


Color Key: Serious Technical Mistake Minor Technical Mistake Language or formatting error Typo Question



Version Location Description Submitted By
Printed Page 48
7th line from the bottom

Very very minor technical addition:
>> $ find -type f -name Makefile | xargs grep e1000
Without the -i option to grep, this doesn't work for strings like "via_rhine".
But to follow the possible intention, there could be a hint to change non-
alphanumerical chars to "." an use egrep like this:
>> $find -type f -name Makefile | xargs egrep via.rhine

Anonymous 
Printed Page 56
4th paragraph, line 20

>> Now that we have the driver name,...
A little annotation to the filename would be nice, because only the corresponding
object-file does appear in the Makefile.
So one could search for the filename without the suffix.
The referred first section was about a dirname.

Anonymous 
Printed Page 58
5th paragraph

On page 57 the vendor and product ID found was: 157e:300d.
On page 58 the ID 157e:300b is selected from the list instead of 157e:300d.

Anonymous 
Printed Page 62
9th line from the bottom

get-driver.sh doesn't always treat possible spaces in sysfs-filenames correctly:

This example tests "/sys/bus/pci/drivers/Intel ICH/module" for existance:
$ ./get-driver.sh adsp
looking at sysfs device: /sys/class/sound/adsp
follow 'device' link to parent: /sys/devices/pci0000:00/0000:00:1f.5
found driver: Intel./get-driver.sh: line 63: test: /sys/bus/pci/drivers/Intel:
binary operator expected

Even on my system there are 4 additional filenames with spaces in that (and only
that) directory. So only the critical hunk would be:

--- get-driver-orgy.sh 2007-01-20 15:08:03.000000000 +0100
+++ get-driver.sh 2007-01-20 15:08:03.000000000 +0100
@@ -60,8 +60,8 @@
DRIVERPATH=$(readlink -f $DEVPATH/driver)
DRIVER=$(basename $DRIVERPATH)
echo -n "found driver: $DRIVER"
- if test -e $DRIVERPATH/module; then
- MODULEPATH=$(readlink -f $DRIVERPATH/module)
+ if test -e "$DRIVERPATH/module"; then
+ MODULEPATH=$(readlink -f "$DRIVERPATH/module")
MODULE=$(basename $MODULEPATH)
echo -n " from module: $MODULE"
fi

For convenience, here the full listing with some more quotes and cites:
#=================================================================================
#!/bin/sh
#
# Find all modules and drivers for a given class device.
#

if [ $# != "1" ] ; then
echo
echo "Script to display the drivers and modules for a specified sysfs class device"
echo "usage: $0 <CLASS_NAME>"
echo
echo "example usage:"
echo " $0 sda"
echo "Will show all drivers and modules for the sda block device."
echo
exit 1
fi

DEV=$1

if test -e "$1"; then
DEVPATH=$1
else
# find sysfs device directory for device
DEVPATH=$(find /sys/class -name "$1" | head -1)
test -z "$DEVPATH" && DEVPATH=$(find /sys/block -name "$1" | head -1)
test -z "$DEVPATH" && DEVPATH=$(find /sys/bus -name "$1" | head -1)
if ! test -e "$DEVPATH"; then
echo "no device found"
exit 1
fi
fi

echo "looking at sysfs device: $DEVPATH"

if test -L "$DEVPATH"; then
# resolve class device link to device directory
DEVPATH=$(readlink -f "$DEVPATH")
echo "resolve link to: $DEVPATH"
fi

if test -d "$DEVPATH"; then
# resolve old-style "device" link to the parent device
PARENT="$DEVPATH";
while test "$PARENT" != "/"; do
if test -L "$PARENT/device"; then
DEVPATH=$(readlink -f "$PARENT/device")
echo "follow 'device' link to parent: $DEVPATH"
break
fi
PARENT=$(dirname "$PARENT")
done
fi

while test "$DEVPATH" != "/"; do
DRIVERPATH=
DRIVER=
MODULEPATH=
MODULE=
if test -e "$DEVPATH/driver"; then
DRIVERPATH=$(readlink -f "$DEVPATH/driver")
DRIVER=$(basename "$DRIVERPATH")
echo -n "found driver: $DRIVER"
if test -e "$DRIVERPATH/module"; then
MODULEPATH=$(readlink -f "$DRIVERPATH/module")
MODULE=$(basename "$MODULEPATH")
echo -n " from module: $MODULE"
fi
echo
fi

DEVPATH=$(dirname "$DEVPATH")
done

Anonymous 
Printed Page 88
3rd paragraph

where it says: /sys/module/usbcore/blinkenlights
it should say: /sys/module/usbcore/parameters/blinkenlights
(at least for kernel 2.6.17)

Anonymous 
Printed Page 95
lpj option

[quote]
lpj Set the loops per jiffy.

lpg=n

Specify the loops per jiffy that . . .
[/quote]

The second line quoted above should be "lpj=n" ?

Anonymous 
Printed Page 121
2nd heading, "Architecture-specific targets", table 10-8

last row in table 10-8:
<quote>
isoimage Creates a CD-ROM boot image and places it in the file arch/i396/boot/image.iso. The syslinux
package must be present on your system in order for this to work properly.
</quote>

arch/i396/boot/image.iso should be arch/i386/boot/image.iso

Anonymous 
Printed Page 128
FLATMEM_MANUAL option

"Most users will see only have one option here: FLATMEM."

This should be either

"Most users will see only one option here: FLATMEM."

or

"Most users will only have one option here: FLATMEM."

Anonymous