LINUX DVB API Version 3 - Linux TV.org
LINUX DVB API Version 3 - Linux TV.org
LINUX DVB API Version 3 - Linux TV.org
Create successful ePaper yourself
Turn your PDF publications into a flip-book with our unique Google optimized e-Paper software.
18 <strong>DVB</strong> FRONTEND <strong>API</strong><br />
2.2.15 FE DISEQC SEND BURST<br />
DESCRIPTION<br />
This ioctl call is used to send a 22KHz tone burst.<br />
SYNOPSIS<br />
int ioctl(int fd, int request = FE DISEQC SEND BURST,<br />
fe sec mini cmd t burst);<br />
PARAMETERS<br />
int fd File descriptor returned by a previous call to open().<br />
int request Equals FE DISEQC SEND BURST for this command.<br />
fe sec mini cmd t<br />
burst<br />
burst A or B.<br />
ERRORS<br />
EBADF fd is not a valid file descriptor.<br />
EFAULT Seq points to an invalid address.<br />
EINVAL The data structure referred to by seq is invalid in some<br />
way.<br />
EPERM Permission denied (needs read/write access).<br />
EINTERNAL Internal error in the device driver.<br />
2.2.16 FE SET TONE<br />
DESCRIPTION<br />
This call is used to set the generation of the continuous 22kHz tone. This call<br />
requires read/write permissions.<br />
SYNOPSIS<br />
int ioctl(int fd, int request = FE SET TONE,<br />
fe sec tone mode t tone);<br />
PARAMETERS<br />
int fd File descriptor returned by a previous call to open().<br />
int request Equals FE SET TONE for this command.<br />
fe sec tone mode t<br />
tone<br />
The requested tone generation mode (on/off).<br />
ERRORS<br />
ENODEV Device driver not loaded/available.<br />
EBUSY Device or resource busy.<br />
EINVAL Invalid argument.<br />
EPERM File not opened with read permissions.<br />
EINTERNAL Internal error in the device driver.<br />
18
Change language