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Comparing ray/src/rt/driver.h (file contents):
Revision 1.8 by greg, Fri Mar 9 14:00:03 1990 UTC vs.
Revision 2.3 by gregl, Tue Nov 11 20:03:00 1997 UTC

# Line 20 | Line 20 | struct driver {                                /* driver functions */
20          int  xsiz, ysiz;                        /* device size */
21          int  inpready;                          /* input ready on device */
22   };
23 <
24 < extern int  stderr_v();                 /* error vectors */
25 < extern int  (*wrnvec)(), (*errvec)(), (*cmdvec)();
26 <
27 < extern struct driver  *comm_init();     /* stream interface */
23 >                                        /* stream interface */
24 > extern struct driver  *comm_init(), *slave_init();
25                                          /* magic numbers for verification */
26   #define COM_SENDM               0x6f37
27   #define COM_RECVM               0x51da
# Line 60 | Line 57 | extern char  dev_default[];            /* default device name */
57   *      The name string identifies the driver,
58   *      and the id string identifies the client.
59   *      A device can be open by at most one client.
60 < *      Be verbose in error reports; call stderr_v().
61 < *      If device has its own error output, set errvec,
65 < *      cmdvec and wrnvec.
60 > *      Be verbose in error reports; call eputs().
61 > *      If device has its own error output, set erract.
62   *  }
63   *  (*dev->close)()
64   *  {

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