Struct libdvb_rs::fe::FeDevice

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pub struct FeDevice { /* private fields */ }

Expand description

A reference to the frontend device and device information

Implementations

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impl FeDevice

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pub fn clear(&self) -> Result<()>

Clears frontend settings and event queue

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pub fn open_ro(adapter: u32, device: u32) -> Result<FeDevice>

Attempts to open frontend device in read-only mode

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pub fn open_rw(adapter: u32, device: u32) -> Result<FeDevice>

Attempts to open frontend device in read-write mode

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pub fn set_properties(&self, cmdseq: &[DtvProperty ]) -> Result<()>

Sets properties on frontend device

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pub fn get_properties(&self, cmdseq: &mut [DtvProperty ]) -> Result<()>

Gets properties from frontend device

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pub fn get_event(&self, event: &mut FeEvent) -> Result<()>

Returns a frontend events if available

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pub fn read_status(&self) -> Result<fe_status>

Returns frontend status

[FE_NONE]
[FE_HAS_SIGNAL]
[FE_HAS_CARRIER]
[FE_HAS_VITERBI]
[FE_HAS_SYNC]
[FE_HAS_LOCK]
[FE_TIMEDOUT]
[FE_REINIT]

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pub fn read_signal_strength(&self) -> Result<u16>

Reads and returns a signal strength relative value (DVBv3 API)

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pub fn read_snr(&self) -> Result<u16>

Reads and returns a signal-to-noise ratio, relative value (DVBv3 API)

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pub fn read_ber(&self) -> Result<u64>

Reads and returns a bit error counter (DVBv3 API)

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pub fn read_unc(&self) -> Result<u64>

Reads and returns an uncorrected blocks counter (DVBv3 API)

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pub fn set_tone(&self, value: u32) -> Result<()>

Turns on/off generation of the continuous 22kHz tone

allowed value’s:

SEC_TONE_ON - turn 22kHz on
SEC_TONE_OFF - turn 22kHz off

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pub fn set_voltage(&self, value: u32) -> Result<()>

Sets the DC voltage level for LNB

allowed value’s:

SEC_VOLTAGE_13 for 13V
SEC_VOLTAGE_18 for 18V
SEC_VOLTAGE_OFF turns LNB power supply off

Different power levels used to select internal antennas for different polarizations:

13V:
- Vertical in linear LNB
- Right in circular LNB
18V:
- Horizontal in linear LNB
- Left in circular LNB
OFF is needed with external power supply, for example to use same LNB with several receivers.

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pub fn diseqc_master_cmd(&self, msg: &[u8 ]) -> Result<()>

Sets DiSEqC master command

msg is a message no more 6 bytes length

Example DiSEqC commited command:

[0xE0, 0x10, 0x38, 0xF0 | value]

byte 1 is a framing (master command without response)
byte 2 is an address (any LNB)
byte 3 is a command (commited)
last 4 bits of byte 4 is:
- xx00 - switch input
- 00x0 - bit is set on SEC_VOLTAGE_18
- 000x - bit is set on SEC_TONE_ON

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