Best approach to filtering MTP devices RRS feed

  • Question

  • Hi,

    I need to support filtering of MTP/PTP devices, i.e. allow, block, read-only etc. so how should I go about this?  My initial thought was as a UMDF upper filter driver but this article:

    suggests it doesn't work.  Anyone implemented this?

    Thanks for the help.

    Tuesday, February 25, 2014 3:53 PM


All replies

  • This is not a UMDF problem as much as it is a device specific filter problem.   You may be able to get a device specific filter to work as standalone but this is not well documented.  The other approach is to make a class filter for the device and have the driver be smart enough to not do anything for devices you do not care about.   Over the years, I've taken the later approach, since the install is easier.

    Don Burn Windows Filesystem and Driver Consulting Website: Blog:

    Tuesday, February 25, 2014 4:04 PM
  • Thanks Don, I'll try the class filter.
    • Marked as answer by SpecWin Tuesday, February 25, 2014 10:08 PM
    Tuesday, February 25, 2014 10:08 PM