K 10
svn:author
V 6
nsayer
K 8
svn:date
V 27
2000-08-02T22:47:44.000000Z
K 7
svn:log
V 329
Simplex devices will always report EBUSY on 2nd (and subsequent)
opens if the reference count is not decremented on close.

Note that this may result in the reference count being corrupted
on full duplex devices (due to mismatching opens/closes), but the
code doesn't use the reference count for anything on full duplex
devices.

END