bool overflow_warned;
int x_old; /* last reported x/y, */
int y_old; /* used for smoothing */
- u8 xy_cur[ATP_XSENSORS + ATP_YSENSORS];
- u8 xy_old[ATP_XSENSORS + ATP_YSENSORS];
+ signed char xy_cur[ATP_XSENSORS + ATP_YSENSORS];
+ signed char xy_old[ATP_XSENSORS + ATP_YSENSORS];
int xy_acc[ATP_XSENSORS + ATP_YSENSORS];
int idlecount; /* number of empty packets */
struct work_struct work;
for (i = 0; i < ATP_XSENSORS + ATP_YSENSORS; i++) {
/* accumulate the change */
- int change = dev->xy_old[i] - dev->xy_cur[i];
+ signed char change = dev->xy_old[i] - dev->xy_cur[i];
dev->xy_acc[i] -= change;
/* prevent down drifting */
/* Just update the base values (i.e. touchpad in untouched state) */
if (dev->data[dev->info->datalen - 1] & ATP_STATUS_BASE_UPDATE) {
- dprintk(KERN_DEBUG "appletouch: updated base values\n");
+ dprintk("appletouch: updated base values\n");
memcpy(dev->xy_old, dev->xy_cur, sizeof(dev->xy_old));
goto exit;