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May 11, 2013 at 12:51pm
calling other function, using return values
is there an example in the sdk? i have this function : `void nocturn_init(t_nocturn *x)
{
struct usb_bus *busses;
struct usb_bus *bus;
struct usb_device *dev;
usb_init();
usb_find_busses();
usb_find_devices();
busses = usb_get_busses();
for (bus = usb_get_busses(); bus; bus = bus->next)
{
for (dev = bus->devices; dev; dev = dev->next)
{
if (dev->descriptor.idVendor == MY_VID
&& dev->descriptor.idProduct == MY_PID)
{
object_post((t_object *)x, “found a Novation Nocturn device”);
object_post((t_object *)x, “Configurations : %i”,dev->descriptor.bNumConfigurations);
return usb_open(dev);
}
}
}
return NULL;
} `
how do i call this from another function and use the returned value?
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May 13, 2013 at 1:27am
Hi there,
if you want to return a generic pointer, you need to define the function as:
void *nocturn_init(t_nocturn *x);
Otherwise if usb_open(dev) returns a specific type, you could use
that as the function return type;
To call it from another function:
void another_function(t_nocturn *x)
{
void *ret_ptr;
ret_ptr = nocturn_init(x);
}
Best.
- Luigi
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May 13, 2013 at 8:59am
thanks Luigi, i sorted that one out shortly after writing the thread, like so often..O.
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