+#define MAX_INSTRUMENT_VERSIONS 10
+#define MAX_COMMAND_SIZE 48
+#define MAX_ANALOG_CHANNEL_COUNT 4
+
+struct scope_config {
+ const char *name[MAX_INSTRUMENT_VERSIONS];
+ const uint8_t analog_channels;
+
+ const char *(*analog_names)[];
+
+ const char *(*coupling_options)[];
+ const uint8_t num_coupling_options;
+
+ const char *(*trigger_sources)[];
+ const uint8_t num_trigger_sources;
+
+ const char *(*trigger_slopes)[];
+
+ const struct sr_rational *timebases;
+ const uint8_t num_timebases;
+
+ const struct sr_rational *vdivs;
+ const uint8_t num_vdivs;
+
+ const uint8_t num_xdivs;
+ const uint8_t num_ydivs;
+};
+
+struct analog_channel_state {
+ int coupling;
+
+ int vdiv;
+ float vertical_offset;
+
+ gboolean state;
+};
+
+struct scope_state {
+ struct analog_channel_state *analog_channels;
+
+ int timebase;
+ float horiz_triggerpos;
+
+ int trigger_source;
+ int trigger_slope;
+ uint64_t sample_rate;
+};
+