rigol-ds: SR_CONF_TRIGGER_SLOPE is actually listable.

diff --git a/src/hardware/rigol-ds/api.c b/src/hardware/rigol-ds/api.c
index 1c2a2ba18b0b3489c703475a30a4dd27bd5f79ae..b9b8a7d5c92d63aaeb00991991ef5fa604cb8ffd 100644 (file)
--- a/src/hardware/rigol-ds/api.c
+++ b/src/hardware/rigol-ds/api.c
@@ -39,7 +39,7 @@ static const uint32_t devopts[] = {
        SR_CONF_LIMIT_FRAMES | SR_CONF_SET,
        SR_CONF_TIMEBASE | SR_CONF_GET | SR_CONF_SET | SR_CONF_LIST,
        SR_CONF_TRIGGER_SOURCE | SR_CONF_GET | SR_CONF_SET | SR_CONF_LIST,
-       SR_CONF_TRIGGER_SLOPE | SR_CONF_GET | SR_CONF_SET,
+       SR_CONF_TRIGGER_SLOPE | SR_CONF_GET | SR_CONF_SET | SR_CONF_LIST,
        SR_CONF_HORIZ_TRIGGERPOS | SR_CONF_SET,
        SR_CONF_NUM_TIMEBASE | SR_CONF_GET,
        SR_CONF_SAMPLERATE | SR_CONF_GET,