On Fri, Feb 10, 2023 at 03:45:15AM +0000, Aditya Garg wrote: > From: Orlando Chamberlain <orlandoch.dev@xxxxxxxxx> > > This driver adds support for the keyboard backlight on Intel T2 Macs > with internal Magic Keyboards (MacBookPro16,x and MacBookAir9,1) ... > +#include <linux/hid.h> > +#include <linux/usb.h> Seems lack of some header inclusions, e.g. where struct led_classdev is defined or -ERRNO codes. > +#include "hid-ids.h" ... > +static void apple_magic_backlight_power_set(struct apple_magic_backlight *backlight, > + char power, char rate) char is a beast, can we use u8 here and in similar cases? ... > + /* Ensure this usb endpoint is for the keyboard backlight, not touchbar > + * backlight. > + */ /* * Multi-line comment style * goes like this. */ ... > + backlight = devm_kzalloc(&hdev->dev, sizeof(*backlight), GFP_KERNEL); > + Redundant blank line. > + if (!backlight) > + return -ENOMEM; ... > +static struct hid_driver apple_magic_backlight_hid_driver = { > + .name = "apple-magic-backlight", > + .id_table = apple_magic_backlight_hid_ids, > + .probe = apple_magic_backlight_probe, > + .remove = apple_magic_backlight_remove, > +}; > + Redundant blank line. > +module_hid_driver(apple_magic_backlight_hid_driver); -- With Best Regards, Andy Shevchenko