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-rw-r--r--libopie/odevice.cpp6
1 files changed, 4 insertions, 2 deletions
diff --git a/libopie/odevice.cpp b/libopie/odevice.cpp
index 1da8862..2f40731 100644
--- a/libopie/odevice.cpp
+++ b/libopie/odevice.cpp
@@ -117,78 +117,80 @@ ODevice::ODevice ( )
}
void ODevice::init ( )
{
}
ODevice::~ODevice ( )
{
delete d;
}
//#include <linux/apm_bios.h>
//#define APM_IOC_SUSPEND _IO('A',2)
#define APM_IOC_SUSPEND (( 0<<30 ) | ( 'A'<<8 ) | ( 2 ) | ( 0<<16 ))
bool ODevice::suspend ( )
{
if ( d-> m_model == OMODEL_Unknown ) // better don't suspend in qvfb / on unkown devices
return false;
int fd;
bool res = false;
if ((( fd = ::open ( "/dev/apm_bios", O_RDWR )) >= 0 ) ||
(( fd = ::open ( "/dev/misc/apm_bios",O_RDWR )) >= 0 )) {
struct timeval tvs, tvn;
::signal ( SIGTSTP, SIG_IGN ); // we don't want to be stopped
::gettimeofday ( &tvs, 0 );
+ ::sync ( ); // flush fs caches
+
res = ( ::ioctl ( fd, APM_IOC_SUSPEND ) == 0 ); // tell the kernel to "start" suspending
- ::close ( fd );
if ( res ) {
- ::kill ( -::getpid ( ), SIGTSTP ); // stop everthing in out process group
+ ::kill ( -::getpid ( ), SIGTSTP ); // stop everthing in our process group
do { // wait at most 1.5 sec: either suspend didn't work or the device resumed
::usleep ( 200 * 1000 );
::gettimeofday ( &tvn, 0 );
} while ((( tvn. tv_sec - tvs. tv_sec ) * 1000 + ( tvn. tv_usec - tvs. tv_usec ) / 1000 ) < 1500 );
::kill ( -::getpid ( ), SIGCONT ); // continue everything in our process group
}
+ ::close ( fd );
::signal ( SIGTSTP, SIG_DFL );
}
return res;
}
QString ODevice::vendorString ( )
{
return d-> m_vendorstr;
}
OVendor ODevice::vendor ( )
{
return d-> m_vendor;
}
QString ODevice::modelString ( )
{
return d-> m_modelstr;
}
OModel ODevice::model ( )
{
return d-> m_model;
}
QString ODevice::systemString ( )
{
return d-> m_systemstr;
}