+static inline char* parse_token(const char *current, int32_t *val_out) {
+ char *next;
+ int32_t val;
+
+ if (!current)
+ return NULL;
+
+ val = strtol(current, &next, 0);
+ if (*next && *next != ':')
+ return NULL;
+
+ if (next != current)
+ *val_out = val;
+
+ if (*next)
+ next++;
+
+ return next;
+}
+
+static void override_abs(int fd, const char *devnode,
+ unsigned evcode, const char *value) {
+ struct input_absinfo absinfo;
+ int rc;
+ char *next;
+
+ rc = ioctl(fd, EVIOCGABS(evcode), &absinfo);
+ if (rc < 0) {
+ log_error_errno(errno, "Unable to EVIOCGABS device \"%s\"", devnode);
+ return;
+ }
+
+ next = parse_token(value, &absinfo.minimum);
+ next = parse_token(next, &absinfo.maximum);
+ next = parse_token(next, &absinfo.resolution);
+ next = parse_token(next, &absinfo.fuzz);
+ next = parse_token(next, &absinfo.flat);
+ if (!next) {
+ log_error("Unable to parse EV_ABS override '%s' for '%s'", value, devnode);
+ return;
+ }
+
+ log_debug("keyboard: %x overridden with %"PRIi32"/%"PRIi32"/%"PRIi32"/%"PRIi32"/%"PRIi32" for \"%s\"",
+ evcode,
+ absinfo.minimum, absinfo.maximum, absinfo.resolution, absinfo.fuzz, absinfo.flat,
+ devnode);
+ rc = ioctl(fd, EVIOCSABS(evcode), &absinfo);
+ if (rc < 0)
+ log_error_errno(errno, "Unable to EVIOCSABS device \"%s\"", devnode);
+}
+
+static void set_trackpoint_sensitivity(struct udev_device *dev, const char *value)
+{
+ struct udev_device *pdev;
+ char val_s[DECIMAL_STR_MAX(int)];
+ int r, val_i;
+
+ /* The sensitivity sysfs attr belongs to the serio parent device */
+ pdev = udev_device_get_parent_with_subsystem_devtype(dev, "serio", NULL);
+ if (!pdev) {
+ log_warning("Failed to get serio parent for '%s'", udev_device_get_devnode(dev));
+ return;
+ }
+
+ r = safe_atoi(value, &val_i);
+ if (r < 0) {
+ log_error("Unable to parse POINTINGSTICK_SENSITIVITY '%s' for '%s'", value, udev_device_get_devnode(dev));
+ return;
+ }
+
+ xsprintf(val_s, "%d", val_i);
+
+ r = udev_device_set_sysattr_value(pdev, "sensitivity", val_s);
+ if (r < 0)
+ log_error_errno(r, "Failed to write 'sensitivity' attribute for '%s': %m", udev_device_get_devnode(pdev));
+}
+
+static int open_device(const char *devnode) {
+ int fd;
+
+ fd = open(devnode, O_RDWR|O_CLOEXEC|O_NONBLOCK|O_NOCTTY);
+ if (fd < 0)
+ return log_error_errno(errno, "Error opening device \"%s\": %m", devnode);
+
+ return fd;
+}
+