2003-04-26 Bang Jun-Young <junyoung@netbsd.org>

	* include/winioctl.h (DEVICE_TYPE_FROM_CTL_CODE): Add macro.

diff --git a/winsup/w32api/ChangeLog b/winsup/w32api/ChangeLog
index 7d1604e..71bc333 100644 (file)
--- a/winsup/w32api/ChangeLog
+++ b/winsup/w32api/ChangeLog
@@ -1,3 +1,7 @@
+2003-04-26  Bang Jun-Young  <junyoung@netbsd.org>
+
+       * include/winioctl.h (DEVICE_TYPE_FROM_CTL_CODE): Add macro.
+
 2003-04-26  Danny Smith  <dannysmith@users.sourceforge.net>
 
        * include/oaidl.h (ITypeMarshal): Add interface.

diff --git a/winsup/w32api/include/winioctl.h b/winsup/w32api/include/winioctl.h
index ed1a471..3f9e71b 100644 (file)
--- a/winsup/w32api/include/winioctl.h
+++ b/winsup/w32api/include/winioctl.h
@@ -11,6 +11,7 @@ extern "C" {
 #define HISTOGRAM_BUCKET_SIZE sizeof(HISTOGRAM_BUCKET)
 #define DISK_HISTOGRAM_SIZE sizeof(DISK_HISTOGRAM)
 #define CTL_CODE(t,f,m,a) (((t)<<16)|((a)<<14)|((f)<<2)|(m))
+#define DEVICE_TYPE_FROM_CTL_CODE(c) (((DWORD)((c)&0xffff0000))>>16)
 #define IOCTL_STORAGE_BASE FILE_DEVICE_MASS_STORAGE
 #define IOCTL_STORAGE_CHECK_VERIFY     CTL_CODE(IOCTL_STORAGE_BASE, 0x0200, METHOD_BUFFERED, FILE_READ_ACCESS)
 #define IOCTL_STORAGE_CHECK_VERIFY2    CTL_CODE(IOCTL_STORAGE_BASE, 0x0200, METHOD_BUFFERED, FILE_ANY_ACCESS)