dev_acquisition_{start,stop}(): Drop duplicate 'cb_data' parameter.

[libsigrok.git] / src / hardware / hameg-hmo / protocol.c

diff --git a/src/hardware/hameg-hmo/protocol.c b/src/hardware/hameg-hmo/protocol.c
index 9d32dc67edfe3656cd4a921462e295f4ab396cbe..9137b3b7c9e72e16b3dad518604096fc3716b38f 100644 (file)
--- a/src/hardware/hameg-hmo/protocol.c
+++ b/src/hardware/hameg-hmo/protocol.c
@@ -734,6 +734,7 @@ SR_PRIV int hmo_receive_data(int fd, int revents, void *cb_data)
        struct sr_datafeed_logic logic;
 
        (void)fd;
+       (void)revents;
 
        data = NULL;
 
@@ -743,8 +744,12 @@ SR_PRIV int hmo_receive_data(int fd, int revents, void *cb_data)
        if (!(devc = sdi->priv))
                return TRUE;
 
+       /* Although this is correct in general, the USBTMC libusb implementation
+        * currently does not generate an event prior to the first read. Often
+        * it is ok to start reading just after the 50ms timeout. See bug #785.
        if (revents != G_IO_IN)
                return TRUE;
+       */
 
        ch = devc->current_channel->data;
 
@@ -768,7 +773,7 @@ SR_PRIV int hmo_receive_data(int fd, int revents, void *cb_data)
                analog.mqflags = 0;
                packet.type = SR_DF_ANALOG_OLD;
                packet.payload = &analog;
-               sr_session_send(cb_data, &packet);
+               sr_session_send(sdi, &packet);
                g_slist_free(analog.channels);
                g_array_free(data, TRUE);
                data = NULL;
@@ -787,7 +792,7 @@ SR_PRIV int hmo_receive_data(int fd, int revents, void *cb_data)
                logic.data = data->data;
                packet.type = SR_DF_LOGIC;
                packet.payload = &logic;
-               sr_session_send(cb_data, &packet);
+               sr_session_send(sdi, &packet);
                g_array_free(data, TRUE);
                data = NULL;
                break;
@@ -803,7 +808,7 @@ SR_PRIV int hmo_receive_data(int fd, int revents, void *cb_data)
                devc->current_channel = devc->current_channel->next;
                hmo_request_data(sdi);
        } else if (++devc->num_frames == devc->frame_limit) {
-               sdi->driver->dev_acquisition_stop(sdi, cb_data);
+               sdi->driver->dev_acquisition_stop(sdi);
        } else {
                devc->current_channel = devc->enabled_channels;
                hmo_request_data(sdi);