Break devctl() up into smaller syscalls

share/sysdefs/dev.h

@@ -0,0 +1,30 @@
+#ifndef SHARE_SYSDEFS_DEV_H_
+#define SHARE_SYSDEFS_DEV_H_
+
+#define DEV_TERMDEV_PUTCH 0
+
+#define DEV_PS2KBDEV_READCH     0
+#define DEV_PS2KBDEV_ATTCHCONS  1
+
+#define DEV_SERIALDEV_SENDB     0
+#define DEV_SERIALDEV_SENDREADY 1
+#define DEV_SERIALDEV_RECVB     2
+#define DEV_SERIALDEV_RECVREADY 3
+
+#define DEV_FBDEV_GETINFO 0
+
+typedef uint64_t Dev_t;
+
+typedef struct {
+  uint16_t w, h;
+  uint16_t margin;
+  uint8_t fontw, fonth;
+} FbDevGetInfo;
+
+typedef struct {
+  bool present;
+  char name[0x100];
+  size_t nfns;
+} DevStat;
+
+#endif // SHARE_SYSDEFS_DEV_H_