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-rw-r--r--hmp-commands.hx8
1 files changed, 5 insertions, 3 deletions
diff --git a/hmp-commands.hx b/hmp-commands.hx
index cfcc044ce4..dc23185de4 100644
--- a/hmp-commands.hx
+++ b/hmp-commands.hx
@@ -1875,9 +1875,11 @@ ETEXI
 
     {
         .name       = "qemu-io",
-        .args_type  = "device:B,command:s",
-        .params     = "[device] \"[command]\"",
-        .help       = "run a qemu-io command on a block device",
+        .args_type  = "qdev:-d,device:B,command:s",
+        .params     = "[-d] [device] \"[command]\"",
+        .help       = "run a qemu-io command on a block device\n\t\t\t"
+                      "-d: [device] is a device ID rather than a "
+                      "drive ID or node name",
         .cmd        = hmp_qemu_io,
     },