usbmuxd(1) General Commands Manual usbmuxd(1)NAME
usbmuxd - iPhone/iPod Touch USB multiplex server daemon
SYNOPSIS
usbmuxd [options]
DESCRIPTION
usbmuxd stands for "USB multiplexing daemon". To the user/developer what it actually does is to proxy requests over a USB cable on
directly to a listening TCP port on the iPhone.
OPTIONS
-h|--help
Print this message.
-v|--verbose
Be verbose (use twice or more to increase).
-f|--foreground
Do not daemonize (implies one -v).
-U|--user[=USER]
Change to this user after startup (needs usb privileges). If USER is not specified, defaults to usbmux.
-u|--udev
Run in udev operation mode.
-x|--exit
Tell a running instance to exit if there are no devices connected (must be in udev mode).
-X|--force-exit
Tell a running instance to exit, even if there are still devices connected (always works).
AUTHORS
Hector Martin "marcan" <hector@marcansoft.com>
Nikias Bassen <nikias@gmx.li>
Paul Sladen <libiphone@paul.sladen.org>
Man page written to conform with Debian by Julien Lavergne.
usbmuxd(1)
Check Out this Related Man Page
Device::USB::FAQ(3pm) User Contributed Perl Documentation Device::USB::FAQ(3pm)NAME
Device::USB::FAQ - Frequently Asked Questions for Device::USB
SYNOPSIS
perldoc Device::USB::FAQ
DESCRIPTION
This is an attempt to answer some of the frequently asked questions about the Device::USB module
QUESTIONS
Which platforms does Device::USB support?
"Device:USB" supports any platform that "libusb" supports. This list currently includes Linux, FreeBSD, NetBSD, OpenBSD, Darwin, and MacOS
X.
There is a port of the "libusb" library to the Windows environment called "LibUsb-Win32". Because I don't have a development environment
for testing this library, "Device::USB" does not yet support this library.
Do I have to use Device::USB as root?
By default, access to the USB devices on a Unix-based system appear to be limited to the root account. This usually causes access to most
of the "libusb" features to fail with a permission error.
Using the "Device::USB" module as root avoids this feature, but is not very satisfying from a security standpoint. (See the next question
for more options.)
How do I enable use of Device::USB as a non-root user?
Some of the attributes of USB devices are available to non-root users, but accessing many of the more interesting features require special
privileges. According to the libusb source, the "open()" function requires either device nodes to be present or the usbfs file system to
be mounted in specific locations. Those places in order are:
1) /dev/bus/usb - pre-2.6.11: via devfs / post-2.6.11: via udev
2) /proc/bus/usb - usbfs
Look in both locations on your system for which of these two methods your libusb will use.
No matter which method your system uses, you will probably want to create a separate group to control access. Run this command to add a
system group:
addgroup --system usb
or
groupadd --system usb
You can then add users to that group to allow access to your usb devices.
DEVFS / HOTPLUG
TODO
UDEV
If you use Debian/Ubuntu, look in the /etc/udev/permissions.rules file. If you want to allow global access to all usb devices, make this
change:
Change this:
SUBSYSTEM=="usb_device", MODE="0664"
To this:
SUBSYSTEM=="usb_device", MODE="0664", GROUP="usb"
After you reboot, all usb devices will inherit the mode and group specified.
If you want to only change permissions for certain devices, you can add this on one line and adjust the product and vendor IDs:
SUBSYSTEM=="usb_device", GROUP="usb",
SYSFS{idVendor}=="1234", SYSFS{idProduct}=="1234"
USBFS
The usbfs defaults to root as the user and group. This can be changed in the /etc/fstab by adding the following on one line:
none /proc/bus/usb usbfs noauto,
listuid=0,listgid=118,listmode=0664,
busuid=0,busgid=118,busmode=0775,
devuid=0,devgid=118,devmode=0664
0 0
The value 118 in the above should be replaced with the group id of your usb group (created above). The list* values are to allow listing
devices, the bus* is to control access to the bus directories and the dev* values control access to the device files. This approach does
not allow the kind of granular permission that the udev approach gives, so it is all or nothing unless permissions are changed
programmatically.
If your /etc/fstab file already has a line for /proc/bus/usb, add the options above to the line that is already there rather than adding
the new line. For example, you would change
usbfs /proc/bus/usb usbfs noauto 0 0
to
usbfs /proc/bus/usb usbfs noauto,
listuid=0,listgid=118,listmode=0664,
busuid=0,busgid=118,busmode=0775,
devuid=0,devgid=118,devmode=0664
0 0
Once again, this needs to be all on one line with the "" characters removed.
SEE ALSO
Device::USB and the "libusb" library site at <http://libusb.sourceforge.net/>.
AUTHOR
G. Wade Johnson (wade at anomaly dot org) Paul Archer (paul at paularcher dot org)
Houston Perl Mongers Group
ACKNOWLEDGEMENTS
Thanks go to various users who submitted questions and answers for the list. In particular, Anthony L. Awtrey who contributed the first FAQ
answer.
COPYRIGHT &; LICENSE
Copyright 2006 Houston Perl Mongers
This document is free software; you can redistribute it and/or modify it under the same terms as Perl itself.
perl v5.14.2 2006-09-03 Device::USB::FAQ(3pm)