Signed-off-by: Daniel Mack <daniel@xxxxxxxx>
---
lsusb.c | 12 ++++++++----
1 files changed, 8 insertions(+), 4 deletions(-)
diff --git a/lsusb.c b/lsusb.c
index 43ce219..b0b073d 100644
--- a/lsusb.c
+++ b/lsusb.c
@@ -939,12 +939,16 @@ static void dump_audio_bmcontrols(const char *prefix, int bmcontrols, const stru
break;
- case USB_AUDIO_CLASS_2:
- if (bmcontrols & (1 << (list->bit * 2)))
- printf("%s%s Control (%s)\n", prefix, list->name,
- bmcontrols & (2 << (list->bit * 2)) ? "read/write" : "read-only");
+ case USB_AUDIO_CLASS_2: {
+ const char *ctrl_type[] = { "read-only", "ILLEGAL (0b10)", "read/write" };
+ int ctrl = (bmcontrols >> (list->bit * 2)) & 0x3;
+
+ if (ctrl)
+ printf("%s%s Control (%s)\n", prefix, list->name, ctrl_type[ctrl-1]);
break;
+ }
+
} /* switch */
list++;
--
1.7.1
--
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