ASIGetControlCaps always returns ASI_GAIN

roysalisbury

Tried the SDK on OSX this weekend and it seems that every call I made to ASIGetControlCaps (not matter the index) would always return ASI_GAIN for the ControlType in the resulting ASI_CONTROL_CAPS structure. The rest of the data would seem to be accurate, just not the ControlType.

I could use the name or description to determine what the data was really for, but that seems like a hack.

Roy

chad

Hi Roy,

Before you call ASIGetControlCaps , please call the ASIGetNumOfControls first.

ASIGetNumOfControls will return the number of the controls, For example return 10. it means this camera support 10 kinds of controls.

Then use different index for ASIGetControlCaps to get the different control caps.

CtrNum = ASIGetNumOfControls;

for(i =0; i < CtlNum; i++)

ASIGetControlCaps(id, i, &cap);

Thanks

Chad

roysalisbury

What I am saying is that no matter what index I call, the field for the ASI_CONTROL_TYPE within the ASI_CONTROL_CAPS is always ASI_GAIN.

So in your example, " &cap " would always have ASI_GAIN no matter which iteration in the loop. The rest of the values in the structure are correct, just not the ASI_CONTROL_TYPE.

Roy

chad

Hi Roy,

Can you show me your code? We never found this problem before.

Thanks

Chad

roysalisbury

I'll write something up. As stated in the subject of the post, is only on OSX. Works fin on Windows and Linux. And I have switched back to Windows at the moment due to other issues (not camera related).

BTW, might want to point out in the docs that the usb library is required to use the SDK. Its not something that is installed by default on OSX (and its not easy to get a copy).

Roy