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qmk_firmware/docs/internals/sysex_tools.md

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group sysex_tools

Summary

Members Descriptions
public uint16_t sysex_encoded_length(uint16_t decoded_length) Compute the length of a message after it is encoded.
public uint16_t sysex_decoded_length(uint16_t encoded_length) Compute the length of a message after it is decoded.
public uint16_t sysex_encode(uint8_t * encoded,const uint8_t * source,uint16_t length) Encode data so that it can be transmitted safely in a sysex message.
public uint16_t sysex_decode(uint8_t * decoded,const uint8_t * source,uint16_t length) Decode encoded data.

Members

public uint16_t sysex_encoded_length(uint16_t decoded_length)

Compute the length of a message after it is encoded.

Parameters

  • decoded_length The length, in bytes, of the message to encode.

Returns

The length, in bytes, of the message after encodeing.

public uint16_t sysex_decoded_length(uint16_t encoded_length)

Compute the length of a message after it is decoded.

Parameters

  • encoded_length The length, in bytes, of the encoded message.

Returns

The length, in bytes, of the message after it is decoded.

public uint16_t sysex_encode(uint8_t * encoded,const uint8_t * source,uint16_t length)

Encode data so that it can be transmitted safely in a sysex message.

Parameters

  • encoded The output data buffer, must be at least sysex_encoded_length(length) bytes long.

  • source The input buffer of data to be encoded.

  • length The number of bytes from the input buffer to encode.

Returns

number of bytes encoded.

public uint16_t sysex_decode(uint8_t * decoded,const uint8_t * source,uint16_t length)

Decode encoded data.

Parameters

  • decoded The output data buffer, must be at least sysex_decoded_length(length) bytes long.

  • source The input buffer of data to be decoded.

  • length The number of bytes from the input buffer to decode.

Returns

number of bytes decoded.