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/*
* BRLTTY - A background process providing access to the console screen (when in
* text mode) for a blind person using a refreshable braille display.
*
* Copyright (C) 1995-2025 by The BRLTTY Developers.
*
* BRLTTY comes with ABSOLUTELY NO WARRANTY.
*
* This is free software, placed under the terms of the
* GNU Lesser General Public License, as published by the Free Software
* Foundation; either version 2.1 of the License, or (at your option) any
* later version. Please see the file LICENSE-LGPL for details.
*
* Web Page: http://brltty.app/
*
* This software is maintained by Dave Mielke <dave@mielke.cc>.
*/
#ifndef BRLTTY_INCLUDED_SYSTEM_LINUX
#define BRLTTY_INCLUDED_SYSTEM_LINUX
#ifdef __cplusplus
extern "C" {
#endif /* __cplusplus */
extern int getKernelRelease (int *major, int *minor, int *patch);
typedef struct {
const char *path;
void *data;
} PathProcessorParameters;
typedef int PathProcessor (const PathProcessorParameters *parameters);
extern int processPathTree (const char *path, PathProcessor *processPath, void *data);
extern int compareGroups (gid_t group1, gid_t group2);
extern void sortGroups (gid_t *groups, size_t count);
extern void removeDuplicateGroups (gid_t *groups, size_t *count);
typedef void GroupsProcessor (const gid_t *groups, size_t count, void *data);
extern void processSupplementaryGroups (GroupsProcessor *processGroups, void *data);
extern int haveSupplementaryGroups (const gid_t *groups, size_t count);
extern int installKernelModule (const char *name, unsigned char *status);
extern int installSpeakerModule (void);
extern int installUinputModule (void);
extern int openCharacterDevice (const char *name, int flags, int major, int minor);
typedef struct UinputObjectStruct UinputObject;
extern UinputObject *newUinputObject (const char *name);
extern void destroyUinputObject (UinputObject *uinput);
extern int getUinputFileDescriptor (UinputObject *uinput);
extern int createUinputDevice (UinputObject *uinput);
extern int enableUinputEventType (UinputObject *uinput, int type);
extern int writeInputEvent (UinputObject *uinput, uint16_t type, uint16_t code, int32_t value);
extern int enableUinputKey (UinputObject *uinput, int key);
extern int writeKeyEvent (UinputObject *uinput, int key, int press);
extern int releasePressedKeys (UinputObject *uinput);
extern int writeRepeatDelay (UinputObject *uinput, int delay);
extern int writeRepeatPeriod (UinputObject *uinput, int period);
extern int enableUinputSound (UinputObject *uinput, int sound);
extern int enableUinputLed (UinputObject *uinput, int led);
extern UinputObject *newUinputKeyboard (const char *name);
typedef struct InputEventMonitorStruct InputEventMonitor;
typedef struct input_event InputEvent;
typedef int UinputObjectPreparer (UinputObject *uinput);
typedef void InputEventHandler (const InputEvent *event);
extern InputEventMonitor *newInputEventMonitor (
const char *name,
UinputObjectPreparer *prepareUinputObject,
InputEventHandler *handleInputEvent
);
extern void destroyInputEventMonitor (
InputEventMonitor *monitor
);
typedef uint8_t LinuxKeyCode;
#define LINUX_KEY_MAP_NAME(type) linuxKeyMap_ ## type
#define LINUX_KEY_MAP(type) const LinuxKeyCode LINUX_KEY_MAP_NAME(type)[0X100]
extern LINUX_KEY_MAP(xt00);
extern LINUX_KEY_MAP(xtE0);
extern LINUX_KEY_MAP(xtE1);
extern LINUX_KEY_MAP(at00);
extern LINUX_KEY_MAP(atE0);
extern LINUX_KEY_MAP(atE1);
extern LINUX_KEY_MAP(ps2);
extern LINUX_KEY_MAP(hid);
typedef struct {
const char *name;
const LinuxKeyCode *keys;
unsigned int count;
} LinuxKeyMapDescriptor;
extern const LinuxKeyMapDescriptor linuxKeyMapDescriptors[];
extern const unsigned char linuxKeyMapCount;
#ifdef __cplusplus
}
#endif /* __cplusplus */
#endif /* BRLTTY_INCLUDED_SYSTEM_LINUX */
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