From: Bert Vermeulen <redacted>
Date: Sat, 16 Mar 2013 20:50:35 +0000 (+0100)
Subject: lascar-el-usb: push samplerate before data log
X-Git-Tag: dsupstream~246
X-Git-Url: https://sigrok.org/gitaction?a=commitdiff_plain;h=8e77bc20b92574076683d861687b63b416d3e965;p=libsigrok.git

lascar-el-usb: push samplerate before data log
---

diff --git a/hardware/lascar-el-usb/api.c b/hardware/lascar-el-usb/api.c
index 94018372..634d6f17 100644
--- a/hardware/lascar-el-usb/api.c
+++ b/hardware/lascar-el-usb/api.c
@@ -350,11 +350,14 @@ static int hw_dev_acquisition_start(const struct sr_dev_inst *sdi,
 		void *cb_data)
 {
 	struct sr_datafeed_packet packet;
+	struct sr_datafeed_meta meta;
+	struct sr_config *src;
 	struct dev_context *devc;
-	struct drv_context *drvc = di->priv;
+	struct drv_context *drvc;
 	struct libusb_transfer *xfer_in, *xfer_out;
 	const struct libusb_pollfd **pfd;
 	struct timeval tv;
+	uint64_t interval;
 	int ret, i;
 	unsigned char cmd[3], resp[4], *buf;
 
@@ -363,6 +366,7 @@ static int hw_dev_acquisition_start(const struct sr_dev_inst *sdi,
 		return SR_ERR;
 	}
 
+	drvc = di->priv;
 	devc = sdi->priv;
 	devc->cb_data = cb_data;
 
@@ -374,6 +378,14 @@ static int hw_dev_acquisition_start(const struct sr_dev_inst *sdi,
 	/* Send header packet to the session bus. */
 	std_session_send_df_header(cb_data, DRIVER_LOG_DOMAIN);
 
+	interval = (devc->config[0x1c] | (devc->config[0x1d] << 8)) * 1000;
+	packet.type = SR_DF_META;
+	packet.payload = &meta;
+	src = sr_config_make(SR_CONF_SAMPLE_INTERVAL, (const void *)&interval);
+	meta.config = g_slist_append(NULL, src);
+	sr_session_send(devc->cb_data, &packet);
+	g_free(src);
+
 	if (devc->logged_samples == 0) {
 		/* This ensures the frontend knows the session is done. */
 		packet.type = SR_DF_END;