ioctl FE_READ_STATUS
&manvol;
FE_READ_STATUS
Returns status information about the front-end. This call only
requires read-only access to the device
int ioctl
int fd
int request
unsigned int *status
Arguments
fd
&fe_fd;
request
FE_READ_STATUS
status
pointer to a bitmask integer filled with the values defined by
&fe-status;.
Description
All DVB frontend devices support the
FE_READ_STATUS ioctl. It is used to check about the
locking status of the frontend after being tuned. The ioctl takes a
pointer to an integer where the status will be written.
NOTE: the size of status is actually sizeof(enum fe_status), with varies
according with the architecture. This needs to be fixed in the future.
&return-value-dvb;
int fe_status
The fe_status parameter is used to indicate the current state
and/or state changes of the frontend hardware. It is produced using
the &fe-status; values on a bitmask
enum fe_status
&cs-def;
ID
Description
FE_HAS_SIGNAL
The frontend has found something above the noise level
FE_HAS_CARRIER
The frontend has found a DVB signal
FE_HAS_VITERBI
The frontend FEC inner coding (Viterbi, LDPC or other inner code) is stable
FE_HAS_SYNC
Synchronization bytes was found
FE_HAS_LOCK
The DVB were locked and everything is working
FE_TIMEDOUT
no lock within the last about 2 seconds
FE_REINIT
The frontend was reinitialized, application is
recommended to reset DiSEqC, tone and parameters