Hello,

2013/1/1 Rob <[email protected]>:
> Using Mythbuntu 12.04, added pcsclite using
>
> apt-get install libpcsclite-dev pcsc-tools libpcsclite1 pcscd libccid
> libssl-dev
>
>
> libccid1.4.5-1
> pcscd 1.7.4-2ubuntu2 (sorry).
>
>
> First Omnikey 3121 works immediately, as proven by pcsc_scan.  Now I insert
> the 2nd Omnikey and see in syslog:
>
> Jan  1 11:53:22 sat kernel: [60084.224182] usb 4-3: new full-speed USB
> device number 6 using ohci_hcd
> Jan  1 11:53:23 sat mtp-probe: checking bus 4, device 6:
> "/sys/devices/pci0000:00/0000:00:12.0/usb4/4-3"
> Jan  1 11:53:23 sat mtp-probe: bus: 4, device: 6 was not an MTP device
> Jan  1 11:53:23 sat pcscd: ccid_usb.c:499:OpenUSBByName() Can't claim
> interface 4/5: -6

-6 is LIBUSB_ERROR_BUSY. The device is already used by another process.

> Now I boot my machine and only one works :-(.

I guess the problem comes from mtp-probe.

See [1]. Remove mtp-probe and try again.

Bye

[1] 
http://www.gooze.eu/howto/smartcard-quickstarter-guide/libmtp-disconnection-bug

-- 
 Dr. Ludovic Rousseau

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