+ devc->step = 0;
+ devc->num_logic_channels = num_logic_channels;
+ devc->logic_unitsize = (devc->num_logic_channels + 7) / 8;
+ devc->logic_pattern = PATTERN_SIGROK;
+ devc->num_analog_channels = num_analog_channels;
+ devc->analog_channel_groups = NULL;
+
+ /* Logic channels, all in one channel group. */
+ if (!(cg = g_try_malloc(sizeof(struct sr_channel_group))))
+ return NULL;
+ cg->name = g_strdup("Logic");
+ cg->channels = NULL;
+ cg->priv = NULL;
+ for (i = 0; i < num_logic_channels; i++) {
+ sprintf(channel_name, "D%d", i);
+ if (!(ch = sr_channel_new(i, SR_CHANNEL_LOGIC, TRUE, channel_name)))
+ return NULL;
+ sdi->channels = g_slist_append(sdi->channels, ch);
+ cg->channels = g_slist_append(cg->channels, ch);
+ }
+ sdi->channel_groups = g_slist_append(NULL, cg);
+
+ /* Analog channels, channel groups and pattern generators. */
+
+ pattern = 0;
+ for (i = 0; i < num_analog_channels; i++) {
+ sprintf(channel_name, "A%d", i);
+ if (!(ch = sr_channel_new(i + num_logic_channels,
+ SR_CHANNEL_ANALOG, TRUE, channel_name)))
+ return NULL;
+ sdi->channels = g_slist_append(sdi->channels, ch);
+
+ /* Every analog channel gets its own channel group. */
+ if (!(cg = g_try_malloc(sizeof(struct sr_channel_group))))
+ return NULL;
+ cg->name = g_strdup(channel_name);
+ cg->channels = g_slist_append(NULL, ch);
+
+ /* Every channel group gets a generator struct. */
+ if (!(ag = g_try_malloc(sizeof(struct analog_gen))))
+ return NULL;
+ ag->packet.channels = cg->channels;
+ ag->packet.mq = 0;
+ ag->packet.mqflags = 0;
+ ag->packet.unit = SR_UNIT_VOLT;
+ ag->packet.data = ag->pattern_data;
+ ag->pattern = pattern;
+ cg->priv = ag;
+
+ sdi->channel_groups = g_slist_append(sdi->channel_groups, cg);
+ devc->analog_channel_groups = g_slist_append(devc->analog_channel_groups, cg);
+
+ if (++pattern == ARRAY_SIZE(analog_pattern_str))
+ pattern = 0;
+ }