HelenOS sources

EILSEQ             61 uspace/lib/bithenge/src/linux/common.h 	return rc == WEOF ? EILSEQ : EOK;
EILSEQ            741 uspace/lib/c/generic/io/io.c 		errno = EILSEQ;
EILSEQ            758 uspace/lib/c/generic/io/io.c 		errno = EILSEQ;