int main(int argc, char *argv[], char *envp[])
{
int force = 0;
- char *action = "add";
- char *subsystem = NULL;
- char *devpath = NULL;
+ const char *action = "add";
+ const char *subsystem = NULL;
+ const char *devpath = NULL;
struct udevice *udev;
struct sysfs_device *dev;
struct udev_rules rules = {};