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-rw-r--r--include/chardev/char-parallel.h20
1 files changed, 19 insertions, 1 deletions
diff --git a/include/chardev/char-parallel.h b/include/chardev/char-parallel.h
index 26742f9d5c..3284a1b96b 100644
--- a/include/chardev/char-parallel.h
+++ b/include/chardev/char-parallel.h
@@ -24,9 +24,27 @@
 #ifndef CHAR_PARALLEL_H
 #define CHAR_PARALLEL_H
 
-#if defined(__linux__) || defined(__FreeBSD__) || \
+#include "chardev/char.h"
+
+#if defined(__linux__) || defined(__FreeBSD__) ||               \
     defined(__FreeBSD_kernel__) || defined(__DragonFly__)
 #define HAVE_CHARDEV_PARPORT 1
 #endif
 
+#define CHR_IOCTL_PP_READ_DATA        3
+#define CHR_IOCTL_PP_WRITE_DATA       4
+#define CHR_IOCTL_PP_READ_CONTROL     5
+#define CHR_IOCTL_PP_WRITE_CONTROL    6
+#define CHR_IOCTL_PP_READ_STATUS      7
+#define CHR_IOCTL_PP_EPP_READ_ADDR    8
+#define CHR_IOCTL_PP_EPP_READ         9
+#define CHR_IOCTL_PP_EPP_WRITE_ADDR  10
+#define CHR_IOCTL_PP_EPP_WRITE       11
+#define CHR_IOCTL_PP_DATA_DIR        12
+
+struct ParallelIOArg {
+    void *buffer;
+    int count;
+};
+
 #endif /* CHAR_PARALLEL_H */