siglent-sds: Fix, USB connection problem partially solved, bug #1130

[libsigrok.git] / src / hardware / siglent-sds / protocol.h

diff --git a/src/hardware/siglent-sds/protocol.h b/src/hardware/siglent-sds/protocol.h
index 20d4363a0569501393ed9ce9443629c2a475717f..ea956e59d077479d8d9e4c045518c483b8811334 100644 (file)
--- a/src/hardware/siglent-sds/protocol.h
+++ b/src/hardware/siglent-sds/protocol.h
@@ -32,6 +32,8 @@
 //#define ACQ_BUFFER_SIZE (6000000)
 #define ACQ_BUFFER_SIZE (18000000)
 
+#define SIGLENT_HEADER_SIZE 351
+
 /* Maximum number of samples to retrieve at once. */
 #define ACQ_BLOCK_SIZE (30 * 1000)
 
@@ -135,10 +137,10 @@ struct dev_context {
        uint64_t num_channel_bytes;
        /* Number of bytes of block header read. */
        uint64_t num_header_bytes;
-       /* Number of bytes in current data block, if 0 block header expected. */
+       /* Number of data blocks bytes already read. */
        uint64_t num_block_bytes;
-       /* Number of data block bytes already read. */
-       uint64_t num_block_read;
+       /* Number of data blocks read. */
+       int num_block_read;
        /* What to wait for in *_receive. */
        enum wait_events wait_event;
        /* Trigger/block copying/stop waiting status. */