Function dev_open

libsigrok4DSL/session_driver.c:736–780

}

static int dev_open(struct sr_dev_inst *sdi)
{
    int ret;
    struct session_vdev *vdev;

    assert(sdi);

    if (sdi->status == SR_ST_ACTIVE){
        // Is opened.
        return SR_OK;
    }

    assert(sdi->priv == NULL);

    vdev = malloc(sizeof(struct session_vdev));
    if (vdev == NULL)
    {
        sr_err("%s: sdi->priv malloc failed", __func__);
        return SR_ERR_MALLOC;
    }
    memset(vdev, 0, sizeof(struct session_vdev));

    vdev->max_timebase = MAX_TIMEBASE;
    vdev->min_timebase = MIN_TIMEBASE;
    vdev->mstatus.measure_valid = TRUE;
    vdev->unit_bits = 1;

    sdi->priv = vdev;
    sdi->status = SR_ST_ACTIVE;

    vdev->buf = malloc(CHUNKSIZE + sizeof(uint64_t));
    if (vdev->buf == NULL){
        sr_err("%s: vdev->buf malloc failed", __func__);
        return SR_ERR_MALLOC;
    }

    ret = sr_load_virtual_device_session(sdi);
    if (ret != SR_OK)
    {
        sr_err("Error!Load session file failed.");
        return ret;
    }

    return SR_OK;
}

static void free_temp_buffer(struct session_vdev *vdev)
{