diff options
Diffstat (limited to 'examples/device/audio_test/src')
| -rw-r--r-- | examples/device/audio_test/src/usb_descriptors.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/examples/device/audio_test/src/usb_descriptors.c b/examples/device/audio_test/src/usb_descriptors.c index 5e448002d..52ddc1bb2 100644 --- a/examples/device/audio_test/src/usb_descriptors.c +++ b/examples/device/audio_test/src/usb_descriptors.c @@ -32,7 +32,7 @@ * Auto ProductID layout's Bitmap: * [MSB] AUDIO | MIDI | HID | MSC | CDC [LSB] */ -#define _PID_MAP(itf, n) ( (CFG_TUD_##itf) << (n) ) +#define _PID_MAP(itf, n) ((CFG_TUD_##itf) ? (1 << (n)) : 0) #define USB_PID (0x4000 | _PID_MAP(CDC, 0) | _PID_MAP(MSC, 1) | _PID_MAP(HID, 2) | \ _PID_MAP(MIDI, 3) | _PID_MAP(AUDIO, 4) | _PID_MAP(VENDOR, 5) ) |