ols: Clear "disabled groups" flags before setting them

[libsigrok.git] / src / hardware / openbench-logic-sniffer / api.c

diff --git a/src/hardware/openbench-logic-sniffer/api.c b/src/hardware/openbench-logic-sniffer/api.c
index 8e4efb9407a88ba725d936dc95c8ac5018504eab..a9812ce96cf1379a88dcb9af92da797c10fd04fa 100644 (file)
--- a/src/hardware/openbench-logic-sniffer/api.c
+++ b/src/hardware/openbench-logic-sniffer/api.c
@@ -497,10 +497,12 @@ static int dev_acquisition_start(const struct sr_dev_inst *sdi)
                        devc->capture_flags & CAPTURE_FLAG_RLE ? "on" : "off",
                        devc->capture_flags & CAPTURE_FLAG_NOISE_FILTER ? "on": "off",
                        devc->capture_flags & CAPTURE_FLAG_DEMUX ? "on" : "off");
+
        /*
         * Enable/disable OLS channel groups in the flag register according
         * to the channel mask. 1 means "disable channel".
         */
+       devc->capture_flags &= ~0x3c;
        devc->capture_flags |= ~(ols_changrp_mask << 2) & 0x3c;
 
        /* RLE mode is always zero, for now. */