Re: [Libphidget-devel] First stab at the 888 ik

[Jack S. <js...@ja...>]

On Thu, 2003-07-03 at 18:34, Tom Brown wrote:
> > 
> > I'll go implement a static char register ...
> > 
> > -Tom
> 
> This seems to have the desired behaviour, I also added an 888 specific 
> check so as not to change the behaviour for the other phidgets...
> 
> -Tom
> 
> 
> static unsigned char digitaloutputs = 0;
> 
> enum ELPError phidgetInterfaceKitWrite(struct phidget *phidgetDevice, int index,
> {
>         char buffer[4];
> 
>         if (phidgetDevice->type->deviceClass == LP_INTERFACE_KIT_888) {
>            if (value) {
>               digitaloutputs |= 1 << index;
>            } else {
>               digitaloutputs &= ~(1 << index);
>            }
>            buffer[0] = digitaloutputs;
>         } else {
>            buffer[0] = index+(value << 3);
>         }
>         buffer[1] = 0;
>         buffer[2] = 0;
>         buffer[3] = 0;
>         return(phidgetWrite(phidgetDevice,buffer,4));
> }
> 
> 

Yes, that will work temporarily, but a better solution (moving that buffer into struct phidget will work better.

This implementation will only support a single 888.


-- 
Jack Strohm <js...@ja...>