Missing keys from magnetic card reader

[Christakis]

Hi,

Host: Win7 64 bit with USB magnetic card reader (GST-250BHK) and Virtual Box 4.3.12 r93733

Guest 1: WinXP 32bit (with Guest Additions 4.3.6 r91406)
Guest 2: Win7 64bit (with Guest Additions 4.3.12 r93733)

I have a USB magnetic card reader that sends swiped card characters as though they were typed on the keyboard. When I open Notepad and swipe a card on either guest machine, some characters do not appear. It appears that repeated alternating sequences are the issue.

Here's the card data as seen on the Host: ;03152?+4010103152?

When the same card is swiped while the Guest is focused the number that appears in notepad is missing the bolded character. Of all the cards I've tried, the only ones that drop a character have 2 more of that character in the preceeding characters but alternating.

That is, in the sequence 401010 the two red characters are causing the blue one to disappear. I tried a sequence of 401110 and the blue character came through fine.

Is there any more information I can give that would help?

ta,
chris

[mpack]

Don't give the VM more than one core. Don't give it too much memory.

Apart from that, no, I can't think of any way to make that awful interface kludge more reliable. I assume you realize that you could attach the USB device directly to the VM, and for some reason don't want to do that?

If you want to continue the discussion then provide a VM log file: Minimum information needed for assistance.

[Christakis]

I assume you realize that you could attach the USB device directly to the VM, and for some reason don't want to do that?

ha! I had not done that - thank you!