input子系统device id如何设置 ？

admin

关于input子系统中的这几个参数，我不知道怎么设置，设置这几个参数的依据是什么？我所调试的芯片说明书也没有告知vendor, product,version这些参数呀？

struct input_id {
__u16 bustype;
__u16 vendor;
__u16 product;
__u16 version;
};

如下我随便乱设置了几个参数，不知道跟已经存在的vendor, product,version值一样是否有冲突？
i2c_cdev->key = input_allocate_device();
i2c_cdev->key->name = "cxdish-key";
i2c_cdev->key->phys = "cxdish-key/input0";
i2c_cdev->key->id.bustype = BUS_HOST;
i2c_cdev->key->id.vendor = 0x0001;
i2c_cdev->key->id.product = 0x0001;
i2c_cdev->key->id.version = 0x0100;
__set_bit(EV_KEY, i2c_cdev->key->evbit);
__set_bit(KEY_WORD_WAKEUP, i2c_cdev->key->keybit);