dist/ntp/kernel/sys/clkdefs.h

   1 /*      $NetBSD$        */
   2
   3 /*
   4  * Defines for the "clk" timestamping STREAMS module
   5  */
   6
   7 #if defined(sun)
   8 #include <sys/ioccom.h>
   9 #else
  10 #include <sys/ioctl.h>
  11 #endif
  12
  13 /*
  14  * First, we need to define the maximum size of the set of
  15  * characters to timestamp. 32 is MORE than enough.
  16  */
  17
  18 #define CLK_MAXSTRSIZE 32
  19 struct clk_tstamp_charset {             /* XXX to use _IOW not _IOWN */
  20         char    val[CLK_MAXSTRSIZE];
  21 };
  22
  23 /*
  24  * ioctl(fd, CLK_SETSTR, (char*)c );
  25  *
  26  * will tell the driver that any char in the null-terminated
  27  * string c should be timestamped. It is possible, though
  28  * unlikely that this ioctl number could collide with an
  29  * existing one on your system. If so, change the 'K'
  30  * to some other letter. However, once you've compiled
  31  * the kernel with this include file, you should NOT
  32  * change this file.
  33  */
  34
  35 #if defined(__STDC__)                   /* XXX avoid __STDC__=0 on SOLARIS */
  36 #define CLK_SETSTR _IOW('K', 01, struct clk_tstamp_charset)
  37 #else
  38 #define CLK_SETSTR _IOW(K, 01, struct clk_tstamp_charset)
  39 #endif
  40