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lascar-el-usb: push samplerate before data log

This commit is contained in:
Bert Vermeulen 2013-03-16 21:50:35 +01:00
parent 7231a14590
commit 8e77bc20b9
1 changed files with 13 additions and 1 deletions
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14
hardware/lascar-el-usb/api.c
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@ -350,11 +350,14 @@ static int hw_dev_acquisition_start(const struct sr_dev_inst *sdi,
void *cb_data) void *cb_data)
{ {
struct sr_datafeed_packet packet; struct sr_datafeed_packet packet;
struct sr_datafeed_meta meta;
struct sr_config *src;
struct dev_context *devc; struct dev_context *devc;
struct drv_context *drvc = di->priv; struct drv_context *drvc;
struct libusb_transfer *xfer_in, *xfer_out; struct libusb_transfer *xfer_in, *xfer_out;
const struct libusb_pollfd **pfd; const struct libusb_pollfd **pfd;
struct timeval tv; struct timeval tv;
uint64_t interval;
int ret, i; int ret, i;
unsigned char cmd[3], resp[4], *buf; 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; return SR_ERR;
} }
drvc = di->priv;
devc = sdi->priv; devc = sdi->priv;
devc->cb_data = cb_data; 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. */ /* Send header packet to the session bus. */
std_session_send_df_header(cb_data, DRIVER_LOG_DOMAIN); 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) { if (devc->logged_samples == 0) {
/* This ensures the frontend knows the session is done. */ /* This ensures the frontend knows the session is done. */
packet.type = SR_DF_END; packet.type = SR_DF_END;