Mon, May 22, 2023 at 04:26:17PM +0200, Astrid Rost kirjoitti: > Add illuminance integration time for vcnl4040 and vcnl4200. > Add read/write attribute for illuminance integration time and read > attribute for available integration times. > Set scale and sampling rate according to the integration time. ... > + data->vcnl4200_al.sampling_rate = ktime_set(0, val * 1200000); > + if (data->id == VCNL4200) > + /* 24000 µlux/step * 50000 µs / val */ > + data->al_scale = div_u64(1200000000, val); Without type these constant are integers. Is this okay with 32-bit builds? > + else > + /* 100000 µlux/step * 80000 µs / val */ > + data->al_scale = div_u64(8000000000, val); Ditto. Also, can you use constants from units.h (KILO) and time.h (USEC_PER_MSEC)? ... > +out: out_unlock: > + mutex_unlock(&data->vcnl4000_lock); > + return ret; -- With Best Regards, Andy Shevchenko