~~NOTOC~~
[[slave_control_api]] > [[BS2_GetSlaveDevice]]

----

===== BS2_GetSlaveExDevice =====
In case of CoreStation, searches a slave device from the RS-485 network.
==== Declaration ====
<code cpp>
#include "BS_API.h"

int BS2_GetSlaveExDevice(void* context, uint32_t deviceId, uint32_t channelPort, BS2Rs485SlaveDeviceEX** slaveDevices, uint32_t* outchannelPort, uint32_t* slaveDeviceCount);
</code>

<callout type="info">
[[slave control api#BS2Rs485SlaveDeviceEX|See BS2Rs485SlaveExDeviceEX Structure]]
</callout>
==== Parameter ====
  * [In] ''//context//'' : Context
  * [In] ''//deviceId//'' : Device ID
  * [In] ''//channelPort//'' : Channel port
  * [Out] ''//slaveDevices//'' : Slave device list pointer
  * [Out] ''//outchannelPort//'' : Channel port of slave device 
  * [Out] ''//slaveDeviceCount//'' : Number of slave devices 
<WRAP indent>
<WRAP info 70%>
**NOTE**\\
slaveDeviceObj variable needs to return the memory to the system by the [[BS2_ReleaseObject]] function after being used.
</WRAP>
</WRAP>
==== Return Value ====
If successfully done, ''BS_SDK_SUCCESS'' will be returned. 
If there is an error, the corresponding error code will be returned.
==== See Also ====
[[BS2_SetSlaveExDevice]]