sr: only handling analog voltage units for now

[libsigrok.git] / sigrok.h.in

diff --git a/sigrok.h.in b/sigrok.h.in
index 04d587207fb03c80c0d9b044ceb80eea0212fcb4..3e6f24e8f00a15337b73c8f183e36bd5cbb16ccf 100644 (file)
--- a/sigrok.h.in
+++ b/sigrok.h.in
@@ -167,6 +167,11 @@ enum {
        SR_DF_FRAME_END,
 };
 
+/* sr_datafeed_analog.unit values */
+enum {
+       SR_UNIT_VOLTAGE,
+};
+
 struct sr_datafeed_packet {
        uint16_t type;
        void *payload;
@@ -194,6 +199,7 @@ struct sr_datafeed_meta_analog {
 
 struct sr_datafeed_analog {
        int num_samples;
+       int unit;
        float *data;
 };
 
@@ -449,7 +455,7 @@ struct sr_samplerates {
        uint64_t low;
        uint64_t high;
        uint64_t step;
-       uint64_t *list;
+       const uint64_t *list;
 };
 
 struct sr_dev_driver {
@@ -463,10 +469,10 @@ struct sr_dev_driver {
        /* Device-specific */
        int (*dev_open) (int dev_index);
        int (*dev_close) (int dev_index);
-       void *(*dev_info_get) (int dev_index, int dev_info_id);
+       const void *(*dev_info_get) (int dev_index, int dev_info_id);
        int (*dev_status_get) (int dev_index);
        const int *(*hwcap_get_all) (void);
-       int (*dev_config_set) (int dev_index, int hwcap, void *value);
+       int (*dev_config_set) (int dev_index, int hwcap, const void *value);
        int (*dev_acquisition_start) (int dev_index, void *session_dev_id);
        int (*dev_acquisition_stop) (int dev_index, void *session_dev_id);
 };