Configure X windows with both keyboard and USB barcode reader
Greetings.
Seeking guidance on adding a USB barcode reader (BCR) to an HP c3750 workstation with HP-UX 11.11 which is essentially configuring X windows to accept input from both a primary keyboard and a secondary keyboard that happens to be the BCR.
Historically, I have successfully added a BCR to an HP c3600 workstation with HP-UX 10.20 and a c3700 with HP-UX 11.11 by configuring X windows to accept input from both a primary keyboard and a secondary keyboard as stated above by adding the following lines to /etc/X11/X0devices :
However, this does not work for the c3750. Adding the above lines to /etc/X11/X0devices does not appear to have any discernible effect on configuring X windows to accept input from two keyboards. A review of X windows generated logs shows no errors. X windows behaves as if no modifications where made to X0devices. The c3750 accepts input from either the primary keyboard or the BCR but not both.
Hi all , I'm trying to read from a USB Barcode-Reader "LX-250" (on Unix) ,
I've written the following code ...
But the program always failes on : ioctl call
Please if anyone has any ideas on what causes it to fail ?
Or how should I try to access the Barcode Device ?
Your help is very... (2 Replies)
I have a USB keyboard/mouse combo hooked up to an x86 box and when it loads the mouse works fine, but the ctrl, shift, alt, and i think the function keys don't do anything. Is there a setting I need to change, or a way to manually configure them. There are no drivers, it is supposed to emulate a... (0 Replies)
Hi there,
I have a Debian machine without any peripherals (no screen, no keyboard, etc.). I'd like to be able to detect and log when someone plugs a USB keyboard. Something like : 2009-07-04 12:21 warning: keyboard pluged!
Is that possible?
I see two ways :
1. Either actively react to the... (4 Replies)
Hi Everyone,
I am using 2.6.26.3-olimex kernel(Embedded system) running on AT91SAM9260. I am using a Logitech USB keyboard.
It is detected as "/dev/input/event0".
I don't know how to detect key press events and read the keys?
Why can't I read the keys using scanf() like funtions?
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I have a serial barcode reader which I attached to my Solaris 10 workstation. I can see the barcode scanned data appearing when I do a tip hardwire.
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hi everybody,
iam using 32 bit centos 6.2 on my machine. i have purchase TP-LINK, TL-WN727N wireless usb, but i was not able to install on my desktop. i was not able to find drivers for centos 6.2 official site of TPLINK.
$ uname -a
Linux workstation 2.6.32-220.el6.i686 #1 SMP Tue Dec 6... (0 Replies)
I successfully created a bootable windows 7 repair usb.
Please clarify me:
I rebooted my system via USB. windows repair window appeared. There were 5 options. I opted 'windows memory diagnostic' and it worked fine. There was an option named 'start up repair'. This option can be used if windows... (2 Replies)
Discussion started by: ravisingh
2 Replies
LEARN ABOUT MINIX
ukbd
UKBD(4) BSD Kernel Interfaces Manual UKBD(4)NAME
ukbd -- USB keyboard driver
SYNOPSIS
To compile this driver into the kernel, place the following line in your kernel configuration file:
device ukbd
Alternatively, to load the driver as a module at boot time, place the following line in loader.conf(5):
ukbd_load="YES"
DESCRIPTION
The ukbd driver provides support for keyboards that attach to the USB port. usb(4) and one of uhci(4) or ohci(4) must be configured in the
kernel as well.
CONFIGURATION
By default, the keyboard subsystem does not create the appropriate devices yet. Make sure you reconfigure your kernel with the following
option in the kernel config file:
options KBD_INSTALL_CDEV
If both an AT keyboard USB keyboards are used at the same time, the AT keyboard will appear as kbd0 in /dev. The USB keyboards will be kbd1,
kbd2, etc. You can see some information about the keyboard with the following command:
kbdcontrol -i < /dev/kbd1
or load a keymap with
kbdcontrol -l keymaps/pt.iso < /dev/kbd1
See kbdcontrol(1) for more possible options.
You can swap console keyboards by using the command
kbdcontrol -k /dev/kbd1
From this point on, the first USB keyboard will be the keyboard to be used by the console.
If you want to use a USB keyboard as your default and not use an AT keyboard at all, you will have to remove the device atkbd line from the
kernel configuration file. Because of the device initialization order, the USB keyboard will be detected after the console driver initial-
izes itself and you have to explicitly tell the console driver to use the existence of the USB keyboard. This can be done in one of the fol-
lowing two ways.
Run the following command as a part of system initialization:
kbdcontrol -k /dev/kbd0 < /dev/ttyv0 > /dev/null
(Note that as the USB keyboard is the only keyboard, it is accessed as /dev/kbd0) or otherwise tell the console driver to periodically look
for a keyboard by setting a flag in the kernel configuration file:
device sc0 at isa? flags 0x100
With the above flag, the console driver will try to detect any keyboard in the system if it did not detect one while it was initialized at
boot time.
DRIVER CONFIGURATION
options KBD_INSTALL_CDEV
Make the keyboards available through a character device in /dev.
options UKBD_DFLT_KEYMAP
makeoptions UKBD_DFLT_KEYMAP=fr.iso
The above lines will put the French ISO keymap in the ukbd driver. You can specify any keymap in /usr/share/syscons/keymaps with this
option.
options KBD_DISABLE_KEYMAP_LOADING
Do not allow the user to change the keymap. Note that these options also affect the AT keyboard driver, atkbd(4).
FILES
/dev/kbd* blocking device nodes
EXAMPLES
device ukbd
Add the ukbd driver to the kernel.
SEE ALSO kbdcontrol(1), ohci(4), syscons(4), uhci(4), usb(4), config(8)AUTHORS
The ukbd driver was written by Lennart Augustsson <augustss@cs.chalmers.se> for NetBSD and was substantially rewritten for FreeBSD by
Kazutaka YOKOTA <yokota@zodiac.mech.utsunomiya-u.ac.jp>.
This manual page was written by Nick Hibma <n_hibma@FreeBSD.org> with a large amount of input from Kazutaka YOKOTA
<yokota@zodiac.mech.utsunomiya-u.ac.jp>.
BSD November 22, 2006 BSD