1 files changed, 22 insertions, 0 deletions
diff --git a/libc/bios/io.h b/libc/bios/io.h
new file mode 100644
index 0000000..a098e03
--- /dev/null
+++ b/libc/bios/io.h
@@ -0,0 +1,22 @@
+#ifndef __io_h__
+#define __io_h__
+
+typedef struct {
+    /*
+     * both block_read/block_write should be defined as
+     * int x(ioblock* iob, char* buffer, int blockno)
+     * and it reads/writes 1k blocks
+     *
+     * close should be defined as int x(ioblock* ioblock);
+     */
+    int (*block_read)();        /* read routine */
+    int (*block_write)();       /* write routine - not supported yet*/
+    int (*close)();             /* close routine */
+    long offset;                /* current offset in file to read/write */
+    int flags;
+    long amount_left;           /* amount left in buffer */
+    char buffer[1024];
+    void* context;
+} ioblock;
+
+#endif