X-Git-Url: https://sigrok.org/gitweb/?a=blobdiff_plain;f=output%2Fanalog.c;h=d2f28b6b2853bf94d6bb2ad91eea4c750c688900;hb=bf53457d1ddea58d1cb7e4feea83ad0cc1d63031;hp=776f29549074dcbae0a23188ef53ce92b40b28c7;hpb=a944a84b17c5f5544b45e27dc07d7f60a4fd6ba8;p=libsigrok.git

diff --git a/output/analog.c b/output/analog.c
index 776f2954..d2f28b6b 100644
--- a/output/analog.c
+++ b/output/analog.c
@@ -173,6 +173,9 @@ static void fancyprint(int unit, int mqflags, float value, GString *out)
 				 * a made-up notation. */
 				g_string_append(out, " %oA");
 			break;
+		case SR_UNIT_CONCENTRATION:
+			g_string_append_printf(out, "%f ppm", value * 1000000);
+			break;
 		default:
 			si_printf(value, out, "");
 	}
@@ -186,11 +189,11 @@ static void fancyprint(int unit, int mqflags, float value, GString *out)
 }
 
 static GString *receive(struct sr_output *o, const struct sr_dev_inst *sdi,
-		struct sr_datafeed_packet *packet)
+		const struct sr_datafeed_packet *packet)
 {
-	struct sr_datafeed_analog *analog;
+	const struct sr_datafeed_analog *analog;
 	struct context *ctx;
-	float *fdata;
+	const float *fdata;
 	int i, j;
 
 	(void)sdi;
@@ -211,7 +214,7 @@ static GString *receive(struct sr_output *o, const struct sr_dev_inst *sdi,
 		break;
 	case SR_DF_ANALOG:
 		analog = packet->payload;
-		fdata = (float *)analog->data;
+		fdata = (const float *)analog->data;
 		for (i = 0; i < analog->num_samples; i++) {
 			for (j = 0; j < ctx->num_enabled_probes; j++) {
 				g_string_append_printf(ctx->out, "%s: ",