* David Schulz <[EMAIL PROTECTED]> [2008-11-21 17:17:57]: > Hi all, > > i have a RFID Proximity Card Reader connected to a Computer via USB. > Basically how they work is that as soon a RFID Card comes near it, the > Reader reads the Number on the Card, and sends it to STDIN followed by a > newline Character. It really works the same as a Magnetic Card Reader, > Barcode Scanner, standard USB keyboard. > > The problem i am having is that the Reader misreads the Number on the > Card more than often. > > For example a swipe should look like: > 0011920435 > 0011920435 > > but often it does look like: > 001cr20435 > 001192\s30435 > 920435 > > I have tried under : > i386 OpenBSD 4.3 PC > i386 OpenBSD 4.4 ThinkPad X61 Laptop > macppc OpenBSD 4.4 Macmini > macppc OpenBSD 4.4 iMac > > All of this with 2 different USB Readers. > > Mostly the same results, too many misreads. no matter how slow or fast i > swipe the Card. Now, one thing that i have noticed is that when i first > plugin a normal USB Keyboard, AND THEN plug in the USB Reader next to > it, everything works great. I have tested and repeated this behavior on > the macppc MacMini. > > Trying with a PS/2 Version of the Reader, it works all great, no > Problems (but there is no ps/2 on the macppc's nor on my Laptop anymore. > grr.) > > I have tried the USB Reader on a Windows XP Machine, and it works like > it should. First detects it as a USB Keyboard, and then nicely reads any > card i swipe at it. I also tried it on a Ubuntu Linux Asus Laptop, and > it works as well. > > Now what i want to ask is obviously, does anyone have any idea what i > could try to do to make my USB Reader work nicely and don't misread all > the time? Will anyone work with me to make it work, or at least figure > out why it doesn't? Maybe there is some way i can tune the behaviour of > attached USB Keyboards, so that they (?) somehow give the Reader more > time before attempting to read the Card. > > Thanks and best regards, > David > >
A dmesg would help. In all likelyhood, your hardware is not following the HID spec. -- Travers Buda
