yokogawa-dlm: Do not block when receiving and save frame length in scope state

[libsigrok.git] / src / hardware / yokogawa-dlm / protocol_wrappers.c

diff --git a/src/hardware/yokogawa-dlm/protocol_wrappers.c b/src/hardware/yokogawa-dlm/protocol_wrappers.c
index 419420d14b83a508ca0dce5d505ad3f1b1ed91e6..a4fc2cd7517de4aeec16522ec1cc778b66cbba51 100644 (file)
--- a/src/hardware/yokogawa-dlm/protocol_wrappers.c
+++ b/src/hardware/yokogawa-dlm/protocol_wrappers.c
@@ -270,9 +270,25 @@ int dlm_acquisition_stop(struct sr_scpi_dev_inst *scpi)
 
 
 int dlm_acq_length_get(struct sr_scpi_dev_inst *scpi,
-               int *response)
+               uint32_t *response)
 {
-       return sr_scpi_get_int(scpi, ":WAVEFORM:LENGTH?", response);
+       int ret;
+       char *s;
+       long tmp;
+
+       if (sr_scpi_get_string(scpi, ":WAVEFORM:LENGTH?", &s) != SR_OK)
+               if (!s)
+                       return SR_ERR;
+
+       if (sr_atol(s, &tmp) == SR_OK)
+               ret = SR_OK;
+       else
+               ret = SR_ERR;
+
+       g_free(s);
+       *response = tmp;
+
+       return ret;
 }
 
 int dlm_chunks_per_acq_get(struct sr_scpi_dev_inst *scpi, int *response)