2.4.9. ioctl FE_DISEQC_SEND_BURST¶
2.4.9.1. Name¶
FE_DISEQC_SEND_BURST - Sends a 22KHz tone burst for 2x1 mini DiSEqC satellite selection.
2.4.9.2. Synopsis¶
-
int
ioctl
(int fd, FE_DISEQC_SEND_BURST, enum fe_sec_mini_cmd tone)¶
2.4.9.3. Arguments¶
fd
- File descriptor returned by open().
tone
- An integer enumered value described at
fe_sec_mini_cmd
.
2.4.9.4. Description¶
This ioctl is used to set the generation of a 22kHz tone burst for mini DiSEqC satellite selection for 2x1 switches. This call requires read/write permissions.
It provides support for what's specified at Digital Satellite Equipment Control (DiSEqC) - Simple "ToneBurst" Detection Circuit specification.
2.4.9.5. Return Value¶
On success 0 is returned.
On error -1 is returned, and the errno
variable is set
appropriately.
Generic error codes are described at the Generic Error Codes chapter.