Fix enable channel usage and add enable event error msg

[lttng-tools.git] / src / bin / lttng / commands / enable_channels.c

diff --git a/src/bin/lttng/commands/enable_channels.c b/src/bin/lttng/commands/enable_channels.c
index 942dbf00e028e53a09f63d9a622d38f52cb636b8..912e3b0413d64297a8a87638518b8a51d9322606 100644 (file)
--- a/src/bin/lttng/commands/enable_channels.c
+++ b/src/bin/lttng/commands/enable_channels.c
@@ -100,17 +100,17 @@ static void usage(FILE *ofp)
                DEFAULT_CHANNEL_OVERWRITE ? "" : " (default)");
        fprintf(ofp, "      --overwrite          Flight recorder mode%s\n",
                DEFAULT_CHANNEL_OVERWRITE ? " (default)" : "");
-       fprintf(ofp, "      --subbuf-size        Subbuffer size in bytes\n");
+       fprintf(ofp, "      --subbuf-size SIZE   Subbuffer size in bytes\n");
        fprintf(ofp, "                               (default: %u, kernel default: %u)\n",
                DEFAULT_CHANNEL_SUBBUF_SIZE,
                DEFAULT_KERNEL_CHANNEL_SUBBUF_SIZE);
-       fprintf(ofp, "      --num-subbuf         Number of subbufers\n");
+       fprintf(ofp, "      --num-subbuf NUM     Number of subbufers\n");
        fprintf(ofp, "                               (default: %u, kernel default: %u)\n",
                DEFAULT_CHANNEL_SUBBUF_NUM,
                DEFAULT_KERNEL_CHANNEL_SUBBUF_NUM);
-       fprintf(ofp, "      --switch-timer       Switch timer interval in usec (default: %u)\n",
+       fprintf(ofp, "      --switch-timer USEC  Switch timer interval in usec (default: %u)\n",
                DEFAULT_CHANNEL_SWITCH_TIMER);
-       fprintf(ofp, "      --read-timer         Read timer interval in usec (default: %u)\n",
+       fprintf(ofp, "      --read-timer USEC    Read timer interval in usec (default: %u)\n",
                DEFAULT_CHANNEL_READ_TIMER);
        fprintf(ofp, "\n");
 }