X-Git-Url: https://sigrok.org/gitweb/?a=blobdiff_plain;f=src%2Fhwdriver.c;h=c81a87a169d0f9e8ef52a1abba87b51c4cb5d63a;hb=efad7cccec8ab00043939b36de950ba2ced15f85;hp=8da425c848a86089ac8bb754f136f682832e8ef3;hpb=758906aa711c2936e7e9adcb449f70905087a5d9;p=libsigrok.git

diff --git a/src/hwdriver.c b/src/hwdriver.c
index 8da425c8..c81a87a1 100644
--- a/src/hwdriver.c
+++ b/src/hwdriver.c
@@ -690,6 +690,15 @@ static int check_key(const struct sr_dev_driver *driver,
 			return SR_ERR_ARG;
 		}
 		break;
+	case SR_CONF_CAPTURE_RATIO:
+		/* Capture ratio must always be between 0 and 100. */
+		if (op != SR_CONF_SET || !data)
+			break;
+		if (g_variant_get_uint64(data) > 100) {
+			sr_err("Capture ratio must be 0..100.");
+			return SR_ERR_ARG;
+		}
+		break;
 	}
 
 	if (sr_config_list(driver, sdi, cg, SR_CONF_DEVICE_OPTIONS, &gvar_opts) != SR_OK) {