Hello, Svante Signell, le lun. 14 sept. 2020 17:44:24 +0200, a ecrit: > +#elif defined(__GNU__) > +#include <mach/port.h> > +#include <hurd/ioctl.h> > +#define DRM_IOCTL_NR(n) ((n) & 0xff) Rather use _IOC_COMMAND, that'll fix it into taking 7 bits only, not 8. Samuel