Files
android/drivers/char/nwbutton.h
T
threeeye bc1d038eac REVVL 6 Pro kernel bring-up: full working tree snapshot (2026-09-12)
Squashed backup commit (no shallow-clone history issues) of
xiaomi-mt6833-dev/kernel_xiaomi_mt6833 (lineage-23.2 branch, upstream
commit 9eece662e) plus all fixes applied to get everpal_defconfig building
clean against a modern (GCC 15.2.0) toolchain -- see the previous commit
message on the lineage-23.2 branch (also in this repo history is not
available here since this is a squashed snapshot; full incremental history
lives in the local DL380 checkout and the upstream GitHub remote).

Upstream: https://github.com/xiaomi-mt6833-dev/kernel_xiaomi_mt6833 (lineage-23.2)
2026-09-12 13:36:46 +00:00

42 lines
1.2 KiB
C

/* SPDX-License-Identifier: GPL-2.0 */
#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 irqreturn_t button_handler (int irq, void *dev_id);
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);
#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 */