C++ (Cpp) usbFunctionRead Exemples

Exemple #1

Fichier : usbdrv.c Projet : unhold/avr

static uchar    usbRead(uchar *data, uchar len)
{
#if USB_CFG_IMPLEMENT_FN_READ
    if(usbMsgFlags & USB_FLG_USE_DEFAULT_RW){
#endif
        uchar i = len, *r = usbMsgPtr;
        if(usbMsgFlags & USB_FLG_MSGPTR_IS_ROM){    /* ROM data */
            while(i--){
                uchar c = PRG_RDB(r);    /* assign to char size variable to enforce byte ops */
                *data++ = c;
                r++;
            }
        }else{                  /* RAM data */
            while(i--)
                *data++ = *r++;
        }
        usbMsgPtr = r;
        return len;
#if USB_CFG_IMPLEMENT_FN_READ
    }else{
        if(len != 0)    /* don't bother app with 0 sized reads */
            return usbFunctionRead(data, len);
        return 0;
    }
#endif
}

Exemple #2

Fichier : usbdrv.c Projet : garyStofer/NintendoToUSBjoystick

static uchar    usbRead(uchar *data, uchar len)
{
#if USB_CFG_IMPLEMENT_FN_READ
    if(usbMsgFlags & USB_FLG_USE_DEFAULT_RW){
#endif
        uchar i = len, *r = usbMsgPtr;
        if(usbMsgFlags & USB_FLG_MSGPTR_IS_ROM){    /* ROM data */
            while(i--){
                uchar c = PRG_RDB(r);    /* assign to char size variable to enforce byte ops */
#ifdef USB_CFG_HID_REPORT_DESCRIPTOR_RUNTIME
		if ((usbDescrConfig + 18 + 7) == (void*)r) {
			*data++ = rt_usbHidReportDescriptorSize;
		}
		else {
			*data++ = c;
		}
#else
		*data++ = c;
#endif
		
                r++;
            }
        }else{                  /* RAM data */
            while(i--)
                *data++ = *r++;
        }
        usbMsgPtr = r;
        return len;
#if USB_CFG_IMPLEMENT_FN_READ
    }else{
        if(len != 0)    /* don't bother app with 0 sized reads */
            return usbFunctionRead(data, len);
        return 0;
    }
#endif
}