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[SOLVED] USB Lattitude E6530 doesn't work
https://forum.yubico.com/viewtopic.php?f=23&t=1115
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Author:  eworm [ Thu Sep 05, 2013 8:47 am ]
Post subject:  Re: [SOLVED] USB Lattitude E6530 doesn't work

Ok, here is my example code:
yk_test.c

Just compile with:
Code:
$ gcc -o yk_test yk_test.c -lykpers-1


Then run it:
Code:
$ ./yk_test
Serial number: 1234567 (0)
Serial number: 1234567 (1)
[...]
Serial number: 1234567 (36)
yk_get_serial failed


This runs in loop just reading and printing the serial number. Last number is just a counter.

I have two Yubikeys firmware version 2.3.3 that fail. Looks like my Neo is not affected... Wired.

Author:  STRML [ Tue Oct 28, 2014 8:49 pm ]
Post subject:  Re: [SOLVED] USB Lattitude E6530 doesn't work

Sorry to bring this thread back from the dead - but have you managed to fix this? I am now seeing this occasionally in OS X Yosemite. Sometimes I can resolve it by simply attempting to log in over and over; sometimes I need to hard reboot. Very annoying.

I am seeing lots of:

Code:
10/28/14 8:01:45.771 PM loginwindow[71]: Challenge response failed: No such file or directory
10/28/14 8:01:45.938 PM loginwindow[71]: USB error: kIOReturnSuccess

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