C++ (Cpp) dmesg_get_msg_string Examples

Example #1

File: dmesg.c Project: drxaero/mxt-app

//******************************************************************************
/// \brief  Get debug message as byte array
/// \param  mxt  Maxtouch Device
/// \param  buf  Pointer to buffer
/// \param  buflen  Length of buffer
/// \param  count number of bytes read
/// \return #mxt_rc
int dmesg_get_msg_bytes(struct mxt_device *mxt, unsigned char *buf,
                        size_t buflen, int *count)
{
  unsigned int bufidx = 0;
  int offset;
  char *message;

  message = dmesg_get_msg_string(mxt);

  if (!message)
    return MXT_ERROR_NO_MESSAGE;

  /* Check message begins with prefix */
  if (strncmp(MSG_PREFIX, message, strlen(MSG_PREFIX))) {
    *count = 0;
    return MXT_SUCCESS;
  }

  message += strlen(MSG_PREFIX);

  while (1 == sscanf(message, "%hhx%n", buf + bufidx, &offset)) {
    message += offset;
    bufidx++;

    if (bufidx >= buflen)
      break;
  }

  *count = bufidx;
  return MXT_SUCCESS;
}

Example #2

File: libmaxtouch.c Project: kdunning/mxt-app

//******************************************************************************
/// \brief  Get T5 message as string
/// \return Message string (null for no message)
char *mxt_get_msg_string(struct mxt_device *mxt)
{
  char *msg_string = NULL;

  switch (mxt->conn->type) {
  case E_SYSFS:
    if (sysfs_has_debug_v2(mxt))
      msg_string = sysfs_get_msg_string_v2(mxt);
    else
      msg_string = dmesg_get_msg_string(mxt);
    break;

#ifdef HAVE_LIBUSB
  case E_USB:
#endif /* HAVE_LIBUSB */
  case E_I2C_DEV:
  case E_HIDRAW:
    msg_string = t44_get_msg_string(mxt);
    break;

  default:
    mxt_err(mxt->ctx, "Device type not supported");
    break;
  }

  if (msg_string)
    mxt_dbg(mxt->ctx, "%s", msg_string);

  return msg_string;
}