07-23-2017
Change login process
Hello everybody !
At the beginning - I hope everything will be understandable as I know that my english skills are not as good as I would like.
I use Manjaro Linux for one year, previously used Ubuntu for 6 years. Today I got an idea to create small USB electronic device but I don't know how to manage it under Linux. What this device should do ? This will be small box with USB interface, inside will be electronics to detect RFID card. If user will approach his RFID card to device - Linux should login that user to system. I suppose that I should write small linux kernel driver to USB that will be run in background and each correct try will log user. Of course, when user has no card it is still possible to login by login and password. My biggest problem is: how to change behaviour of standard Linux login window? What should I google or where find information? I'm not afraid with changing kernel, writing new modules, I would like to learn Linux at all
Thanks in advance for ideas !
Greetings
Mateusz
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lsusb(8) Linux USB Utilities lsusb(8)
NAME
lsusb - list all USB devices
SYNOPSIS
lsusb [options]
DESCRIPTION
lsusb is a utility for displaying information about all USB buses in the system and all devices connected to them.
To make use of all the features of this program, you need to have Linux kernel 2.3.15 or newer which supports the /proc/bus/usb interface.
OPTIONS
-v Tells lsusb to be verbose and display detailed information about all devices.
-vv Tells lsusb to be very verbose and display even more information (actually everything the PCI device is able to tell).
-s [[<bus>]:][<devnum>]]
Show only devices in specified bus and devnum.
-d [<vendor>]:[<product>]
Show only devices with specified vendor and product ID. Both ID's are given in hexadecimal and may be omitted.
-p <procpath>
Use another path instead of /proc/bus/usb.
-D <device>
Do not scan the /proc/bus/usb directory, instead display only information if the device whose device file is given.
-t Tells lsusb to dump the physical USB device hierarchy as a tree.
FILES
/usr/share/hwdata/usb.ids
A list of all known USB ID's (vendors, products, classes, subclasses and protocols).
/proc/bus/usb
An interface to USB devices provided by the post-2.3.15 Linux kernels. Contains per-bus subdirectories with per-device files and a
devices file containing a list of all USB devices.
SEE ALSO
lspci(8)
AUTHOR
Thomas Sailer, <sailer@ife.ee.ethz.ch>.
usbutils-0.2 14 September 1999 lsusb(8)