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authormickeyl <mickeyl>2005-02-04 17:45:50 (UTC)
committer mickeyl <mickeyl>2005-02-04 17:45:50 (UTC)
commitc0248a2c02381b5a5dce5c4543db6ff46486f2f1 (patch) (side-by-side diff)
treed0aa40497fe90875a273d2e0dbbfc65608f23b43
parent276022cd2a84f531bbf727c34d76420d8195512d (diff)
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use a sane method to discover valid device nodes
Diffstat (more/less context) (ignore whitespace changes)
-rw-r--r--libopie2/opiecore/oinputsystem.cpp38
-rw-r--r--libopie2/opiecore/oinputsystem.h19
2 files changed, 43 insertions, 14 deletions
diff --git a/libopie2/opiecore/oinputsystem.cpp b/libopie2/opiecore/oinputsystem.cpp
index d1a28f5..a2306ca 100644
--- a/libopie2/opiecore/oinputsystem.cpp
+++ b/libopie2/opiecore/oinputsystem.cpp
@@ -27,19 +27,21 @@
*/
#include "oinputsystem.h"
using namespace Opie::Core;
/* QT */
+#include <qdir.h>
#include <qfile.h>
/* STD */
#include <errno.h>
#include <string.h>
#include <sys/fcntl.h>
#include <sys/ioctl.h>
+#include <unistd.h>
#define BUFSIZE 256
#define BIT_MASK( name, numbits ) \
unsigned short name[ ((numbits) - 1) / (sizeof( short ) * 8) + 1 ]; \
memset( name, 0, sizeof( name ) )
#define BIT_TEST( bitmask, bit ) \
@@ -58,17 +60,28 @@ OInputSystem::OInputSystem() : QObject()
}
void OInputSystem::synchronize()
{
qDebug( "OInputSystem::synchronize()" );
- if ( QFile::exists( "/dev/input/event0" ) ) _devices.insert( "0", new OInputDevice( this, "/dev/input/event0" ) );
- if ( QFile::exists( "/dev/input/event1" ) ) _devices.insert( "1", new OInputDevice( this, "/dev/input/event1" ) );
- if ( QFile::exists( "/dev/input/event2" ) ) _devices.insert( "2", new OInputDevice( this, "/dev/input/event2" ) );
- if ( QFile::exists( "/dev/input/event3" ) ) _devices.insert( "3", new OInputDevice( this, "/dev/input/event3" ) );
+ QDir devInput( "/dev/input/" );
+ if ( devInput.exists() )
+ {
+ QStringList devInputFiles = devInput.entryList( QDir::System, QDir::Name );
+ for ( QStringList::Iterator it = devInputFiles.begin(); it != devInputFiles.end(); ++it )
+ {
+ QString absPath = devInput.absFilePath( *it );
+ bool isValid = OInputDevice::isValid( absPath );
+ qDebug( "OInputSystem::synchronize() - checking if '%s' is a valid input system node... '%s'",
+ (const char*) absPath, isValid ? "yes" : "no" );
+ if ( isValid ) _devices.insert( *it, new OInputDevice( this, absPath ) );
+ }
+ }
qDebug( "OInputSystem::synchronize() done" );
+ if ( !_devices.count() )
+ qWarning( "OInputSystem::no devices found" );
}
OInputSystem::~OInputSystem()
{
qDebug( "OInputSystem::~OInputSystem()" );
@@ -103,13 +116,13 @@ OInputSystem::DeviceIterator OInputSystem::iterator() const
* OInputDevice
*======================================================================================*/
OInputDevice::OInputDevice( QObject* parent, const char* name ) : QObject( parent, name )
{
qDebug( "OInputDevice::OInputDevice( '%s' )", name );
-
+
_fd = ::open( name, O_RDONLY );
if ( _fd == -1 )
{
qDebug( "OInputDevice::OInputDevice() - Warning: couldn't open %s (%s)", name, strerror( errno ) );
}
}
@@ -145,13 +158,13 @@ QString OInputDevice::uniq() const
}
bool OInputDevice::hasFeature( Feature bit ) const
{
BIT_MASK( features, EV_MAX );
-
+
if( ioctl( _fd, EVIOCGBIT( 0, EV_MAX ), features) < 0 )
{
perror( "EVIOCGBIT" );
return false;
}
else
@@ -188,10 +201,21 @@ QString OInputDevice::globalKeyMask() const
QString keymask;
for ( int i = 0; i < KEY_MAX; ++i )
{
if ( BIT_TEST( keys, i ) ) keymask.append( QString().sprintf( "%0d, ", i ) );
}
return keymask;
-
+
}
}
+
+bool OInputDevice::isValid( const QString& path )
+{
+ char buf[BUFSIZE] = "<unknown>";
+ int fd = ::open( (const char*) path, O_RDONLY );
+ if ( fd < 0 ) return false;
+ int res = ::ioctl( fd, EVIOCGNAME(sizeof buf), buf );
+ ::close( fd );
+ return res >= 0;
+}
+
diff --git a/libopie2/opiecore/oinputsystem.h b/libopie2/opiecore/oinputsystem.h
index 7919610..6f822a1 100644
--- a/libopie2/opiecore/oinputsystem.h
+++ b/libopie2/opiecore/oinputsystem.h
@@ -74,31 +74,31 @@ class OInputSystem : public QObject
* @internal Rebuild the internal interface database
* @note Sometimes it might be useful to call this from client code,
*/
void synchronize();
/**
* @internal destructor
- */
+ */
~OInputSystem();
-
+
protected:
OInputSystem();
-
+
static OInputSystem* _instance;
DeviceMap _devices;
};
class OInputDevice : public QObject
-{
+{
public:
OInputDevice( QObject* parent, const char* name = 0 );
~OInputDevice();
- #include "oinputsystemenums.h"
-
+ #include "oinputsystemenums.h"
+
public:
/**
* @returns the identity string of this input device
*/
QString identity() const;
/**
@@ -120,13 +120,18 @@ class OInputDevice : public QObject
bool isHeld( Key ) const;
/**
* @internal
* @returns a string containing a printable form of the global keymask
*/
QString globalKeyMask() const;
-
+ /**
+ * @internal
+ * @returns whether a certain @a path corresponds to an input device
+ */
+ static bool isValid( const QString& path );
+
private:
int _fd;
input_id _id;
};