Sergey Bugaev, le dim. 27 oct. 2024 21:36:11 +0300, a ecrit: > You'll also have to > define _IOT_rtc_time in a C header (rtc.h) next to the struct rtc_time > definition, using the _IOT macro.
Yes, definitely. Since struct rtc_time is merely 9 ints, that will be easy. > 2. just require the caller to have the device node opened for writing, > and then rely on the Unix file access permissions mechanism to control > who can do that (e.g. if it's owned by root and the mode is 0644, only > root can open it for writing, but anyone can read). That'll probably be simpler, yes. Samuel