Convert all the _IOC_ size masks into longs for future compatibility with 2.4
diff --git a/pyparallel/parallel/parallelppdev.py b/pyparallel/parallel/parallelppdev.py
index fc87e90..64c89f4 100644
--- a/pyparallel/parallel/parallelppdev.py
+++ b/pyparallel/parallel/parallelppdev.py
@@ -17,7 +17,7 @@
def _IOW(type,nr,size): return _IOC(_IOC_WRITE, type, nr, sizeof(size))
_IOC_SIZEBITS = 14
-_IOC_SIZEMASK = (1 << _IOC_SIZEBITS ) - 1
+_IOC_SIZEMASK = (1L << _IOC_SIZEBITS ) - 1
_IOC_NRSHIFT = 0
_IOC_NRBITS = 8
_IOC_TYPESHIFT = _IOC_NRSHIFT + _IOC_NRBITS
@@ -25,10 +25,10 @@
_IOC_SIZESHIFT = _IOC_TYPESHIFT + _IOC_TYPEBITS
IOCSIZE_MASK = _IOC_SIZEMASK << _IOC_SIZESHIFT
IOCSIZE_SHIFT = _IOC_SIZESHIFT
-_IOC_WRITE = 1
+_IOC_WRITE = 1L
_IOC_DIRSHIFT = _IOC_SIZESHIFT + _IOC_SIZEBITS
IOC_IN = _IOC_WRITE << _IOC_DIRSHIFT
-_IOC_READ = 2
+_IOC_READ = 2L
IOC_INOUT = (_IOC_WRITE | _IOC_READ) << _IOC_DIRSHIFT
IOC_OUT = _IOC_READ << _IOC_DIRSHIFT