modbus_get_byte_from_bits - Man Page

get the value from many bits


uint8_t modbus_get_byte_from_bits(const uint8_t *src, int index, unsigned int nb_bits);


The modbus_get_byte_from_bits() function shall extract a value from many bits. All nb_bits bits from src at position index will be read as a single value. To obtain a full byte, set nb_bits to 8.

Return Value

The function shall return a byte containing the bits read.

See Also

modbus_set_bits_from_byte(3) modbus_set_bits_from_bytes(3)


The libmodbus documentation was written by Stéphane Raimbault <>

Referenced By

libmodbus(7), modbus_set_bits_from_bytes(3).

01/25/2024 libmodbus v3.1.7 libmodbus Manual