- Fix a compile warning where the return value of a call
to a write() function was ignored.
- Remove redundant include files from userland USB header files.
- Add some now needed include files to various C-files.
- Clamp the string length to 255 bytes when getting
the interface description.
- Clamp data request length to 65535 bytes when doing
control requests.
MFC after: 3 days
about the parent USB device:
- libusb20_dev_get_parent_address
- libusb20_dev_get_parent_port
- Rename libusb20_compat01.c into libusb01.c
MFC after: 3 days
