patch-2.3.48 linux/drivers/char/nwbutton.h

• Lines: 49
• Date: Thu Feb 24 22:56:47 2000
• Orig file: v2.3.47/linux/drivers/char/nwbutton.h
• Orig date: Wed Dec 31 16:00:00 1969

diff -u --recursive --new-file v2.3.47/linux/drivers/char/nwbutton.h linux/drivers/char/nwbutton.h
@@ -0,0 +1,48 @@
+#ifndef __NWBUTTON_H
+#define __NWBUTTON_H
+
+/*
+ * 	NetWinder Button Driver-
+ *	Copyright (C) Alex Holden <alex@linuxhacker.org> 1998, 1999.
+ */
+
+#ifdef __NWBUTTON_C	/* Actually compiling the driver itself */
+
+/* Various defines: */
+
+#define NUM_PRESSES_REBOOT 2	/* How many presses to activate shutdown */
+#define BUTTON_DELAY 30 	/* How many jiffies for sequence to end */
+#define VERSION "0.3"		/* Driver version number */
+#define BUTTON_MINOR 158	/* Major 10, Minor 158, /dev/nwbutton */
+
+/* Structure definitions: */
+
+struct button_callback {
+	void (*callback) (void);
+	int count;
+};
+
+/* Function prototypes: */
+
+static void button_sequence_finished (unsigned long parameters);
+static void button_handler (int irq, void *dev_id, struct pt_regs *regs);
+static int button_read (struct file *filp, char *buffer,
+			size_t count, loff_t *ppos);
+static int button_open (struct inode *inode, struct file *filp);
+static int button_release (struct inode *inode, struct file *filp);
+int button_init (void);
+int button_add_callback (void (*callback) (void), int count);
+int button_del_callback (void (*callback) (void));
+static void button_consume_callbacks (int bpcount);
+#ifdef MODULE
+int init_module (void);
+void cleanup_module (void);
+#endif /* MODULE */
+
+#else /* Not compiling the driver itself */
+
+extern int button_add_callback (void (*callback) (void), int count);
+extern int button_del_callback (void (*callback) (void));
+
+#endif /* __NWBUTTON_C */
+#endif /* __NWBUTTON_H */