Ludovic Rousseau,

Hello. I am a VMware USb developer and I am trying to deal with this
issue. What we when an user wants to connect a physical device to the
guest aka passthrogh is to knock off the current driver loaded for the
device and claim the interfaces. While this approach works if a kernel
driver is loaded against the device, it does not if pcscd/libccid is the
driver.

I do not get an error from usbfs but my demsg buffer is filled with vmx-
tried to use interface 0 before claiming.

Any suggestions how else we could address this problem?

I do not have examples of knocking off other user space drivers working
well., since other USB device (mass storage, audio, video) use kernel
drivers.

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https://bugs.launchpad.net/bugs/787451

Title:
  pcscd spams to syslog and kern.log after enabling smartcard reader in
  VMWare Workstation

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