package/libtapi/src/tapi-stream.c

   1 #include <errno.h>
   2 #include <fcntl.h>
   3 #include <stdbool.h>
   4 #include <stdio.h>
   5 #include <stdlib.h>
   6 #include <unistd.h>
   7
   8 #include "tapi-device.h"
   9 #include "tapi-stream.h"
  10 #include "tapi-ioctl.h"
  11
  12 struct tapi_stream *tapi_stream_alloc(struct tapi_device *dev)
  13 {
  14         struct tapi_stream *stream;
  15
  16         stream = malloc(sizeof(*stream));
  17         if (!stream)
  18                 return NULL;
  19
  20         stream->fd = open(dev->stream_path, O_RDWR);
  21
  22         if (stream->fd < 0) {
  23                 free(stream);
  24                 return NULL;
  25         }
  26
  27         stream->ep = ioctl(stream->fd, TAPI_STREAM_IOCTL_GET_ENDPOINT, 0);
  28
  29         if (stream->ep < 0) {
  30                 close(stream->fd);
  31                 free(stream);
  32                 return NULL;
  33         }
  34
  35         return stream;
  36 }
  37
  38 void tapi_stream_free(struct tapi_stream *stream)
  39 {
  40         close(stream->fd);
  41         free(stream);
  42 }