SsiGetMaxChannels

Function

Get the number of channels for the device.

Format

Ret = SsiGetMaxChannels ( Id , &ChannelNum )

Parameters

Id [ C： short ] [ Python: ctypes.c_short ]
Specify the device ID retrieved from SsiInit.

ChannelNum [ C： short * ] [ Python: ctypes.POINTER(ctypes.c_short) ]
Specify the variable address for storing the number of channels.

Return Value

Ret [C： long ] [ Python: ctypes.c_long ]

Definition	Value [Dec]	Description
SSI_ERR_SUCCESS	0	Succeeded
SSI_ERR_DLL_INVALID_ID	10001	Invalid device id.
SSI_ERR_DLL_CALL_DRIVER	10002	Can not call driver (ioctl failed).
SSI_ERR_DLL_BUFF_ADDRESS	10100	Invalid data buffer address.

The others (See also: Details of Error Code)

Initial Value

None

Remarks

Get the number of channels for the device.

Example

long Ret;
short ChannelNum;
Ret = SsiGetMaxChannels(Id, &ChannelNum);

Python

Ret = ctypes.c_long()

ChannelNum = ctypes.c_short()

Ret.value = cssi.SsiGetMaxChannels(Id, ctypes.byref(ChannelNum))