Kees Jongenburger 880ae44a72 usb:Adding usb enumeration.
usbd update from JPEmbedded

Change-Id: I4098b29a3188abe7110d59f0746ea40ac5818bbf

http://gerrit.minix3.org/#/c/2698/
2014-07-28 17:05:40 +02:00
..
2014-07-28 17:05:40 +02:00
2014-07-28 17:05:40 +02:00
2014-07-28 17:05:40 +02:00
2014-07-28 17:05:38 +02:00
2014-07-28 17:05:38 +02:00
2014-07-28 17:05:38 +02:00

-------------------------------------------------------------------------------
*                           INFORMATION:                                      *
-------------------------------------------------------------------------------
README file for "USBD" USB host controller driver.

created march-may 2014, JPEmbedded (info@jpembedded.eu)

-------------------------------------------------------------------------------
*                           KNOWN LIMITATIONS:                                *
-------------------------------------------------------------------------------
- Only first configuration can be selected for attached device
- Only one device can be handled at a time, no hub functionality
- DDEKit does not implement resource deallocation for corresponding thread
  creation (see ddekit_thread_terminate, ddekit_thread_create) thus resources
  are spilled
- Driver assumes that there is no preemption for DDEKit threading