- for (j = 1; j <= model->analog_channels; j++) {
- if (cg != devc->analog_groups[j - 1])
- continue;
- state->analog_states[j - 1].vdiv = idx;
- g_ascii_formatd(float_str, sizeof(float_str),
- "%E", (float) dlm_vdivs[idx][0] / dlm_vdivs[idx][1]);
- if (dlm_analog_chan_vdiv_set(sdi->conn, j, float_str) != SR_OK ||
- sr_scpi_get_opc(sdi->conn) != SR_OK)
- return SR_ERR;
- break;
- }
+ if ((j = std_cg_idx(cg, devc->analog_groups, model->analog_channels)) < 0)
+ return SR_ERR_ARG;
+ state->analog_states[j].vdiv = idx;
+ g_ascii_formatd(float_str, sizeof(float_str),
+ "%E", (float) dlm_vdivs[idx][0] / dlm_vdivs[idx][1]);
+ if (dlm_analog_chan_vdiv_set(sdi->conn, j + 1, float_str) != SR_OK ||
+ sr_scpi_get_opc(sdi->conn) != SR_OK)
+ return SR_ERR;