LXR linux/include/uapi/asm-generic/poll.h

   1/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
   2#ifndef __ASM_GENERIC_POLL_H
   3#define __ASM_GENERIC_POLL_H
   4
   5/* These are specified by iBCS2 */
   6#define POLLIN          0x0001
   7#define POLLPRI         0x0002
   8#define POLLOUT         0x0004
   9#define POLLERR         0x0008
  10#define POLLHUP         0x0010
  11#define POLLNVAL        0x0020
  12
  13/* The rest seem to be more-or-less nonstandard. Check them! */
  14#define POLLRDNORM      0x0040
  15#define POLLRDBAND      0x0080
  16#ifndef POLLWRNORM
  17#define POLLWRNORM      0x0100
  18#endif
  19#ifndef POLLWRBAND
  20#define POLLWRBAND      0x0200
  21#endif
  22#ifndef POLLMSG
  23#define POLLMSG         0x0400
  24#endif
  25#ifndef POLLREMOVE
  26#define POLLREMOVE      0x1000
  27#endif
  28#ifndef POLLRDHUP
  29#define POLLRDHUP       0x2000
  30#endif
  31
  32#define POLLFREE        (__force __poll_t)0x4000        /* currently only for epoll */
  33
  34#define POLL_BUSY_LOOP  (__force __poll_t)0x8000
  35
  36struct pollfd {
  37        int fd;
  38        short events;
  39        short revents;
  40};
  41
  42#endif  /* __ASM_GENERIC_POLL_H */
  43