12-18-2011
Forcing Linux to keep charging my Kindle
Linux seems to have weird USB power saving features, my Kindle 3 only gets some charge before Linux powers down the USB port.
When the device is mounted, it doesn't get enough power, with this same hardware under Windows I don't get the message on the Kindle "currently your kindle is not charging." When I eject the device it gets no power at all. I've had a bit of a look around in /proc
A) Ignore: What the f***?
B) How do I turn this crap off?
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LEARN ABOUT CENTOS
usb-devices
usb-devices(1) Linux USB Utilities usb-devices(1)
NAME
usb-devices - print USB device details
SYNOPSIS
usb-devices
DESCRIPTION
usb-devices is a (bash) shell script that can be used to display details of USB buses in the system and the devices connected to them.
The output of the script is similar to the usb/devices file available either under /proc/bus (if usbfs is mounted), or under /sys/ker-
nel/debug (if debugfs is mounted there). The script is primarily intended to be used if the file is not available.
In contrast to the usb/devices file, this script only lists active interfaces (those marked with a "*" in the usb/devices file) and their
endpoints.
Be advised that there can be differences in the way information is sorted, as well as in the format of the output.
RETURN VALUE
If sysfs is not mounted, a non-zero exit code is returned.
FILES
/sys/bus/usb/devices/usb*
The part of the sysfs tree the script walks through to assemble the printed information.
/proc/bus/usb/devices
Location where the usb/devices file can normally be found for Linux kernels before 2.6.31, if usbfs is mounted.
/sys/kernel/debug/usb/devices
Location where the usb/devices file can normally be found for Linux kernel 2.6.31 and later, if debugfs is mounted.
SEE ALSO
lsusb(8), usbview(8).
AUTHORS
Greg Kroah-Hartman <greg@kroah.com>
Randy Dunlap <rdunlap@xenotime.net>
Frans Pop <elendil@planet.nl>
usbutils-007 23 June 2009 usb-devices(1)