doesn't happen to be included before this header.
This header was missed in previous cleanups because it didn't include
<sys/ioctl.h> or <sys/ioccom.h>. Clean it now:
- #include <sys/types.h> since it is necessary to make the header self-
sufficient (there are a couple of u_char's).
- uniformized idempotency ifdef. Copied the style in the 4.4Lite
ioctl headers.
vs unidirectional transfer modes. The kernel handles hardware, user mode
programs shouldn't get in the way.
This cleans up some really ugly grots that I hated too. :-)
Suggested by: Sujal Patel <smpatel@wam.umd.edu>
* warning: this user interface is still in flux pending negotiations
* with other quickcam driver authors. It is _not_ compatible with the
* original linux interface due to the fact that it was too restrictive.
