Function pamoja_modbus_client_read_holding_registers 

#[unsafe(no_mangle)]
pub unsafe extern "C" fn pamoja_modbus_client_read_holding_registers(
    client: *const PamojaModbusClient,
    unit: u8,
    start: u16,
    quantity: u16,
    out_values: *mut u16,
    out_error: *mut PamojaModbusClientError,
) -> PamojaStatus

Reads holding registers, function 0x03.

Arguments

• client - the client.
• unit - the device, 1 to 247.
• start - the first register’s address.
• quantity - how many, 1 to 125.
• out_values - receives the values, in address order.
• out_error - receives why the call failed, or null.

Returns

As pamoja_modbus_client_read_coils.

Safety

client must be a live handle or null, out_values must point to quantity writable values, and out_error must be a writable pointer or null.