diff options
Diffstat (limited to 'examples/device/net_lwip_webserver/src/usb_descriptors.c')
| -rw-r--r-- | examples/device/net_lwip_webserver/src/usb_descriptors.c | 12 |
1 files changed, 2 insertions, 10 deletions
diff --git a/examples/device/net_lwip_webserver/src/usb_descriptors.c b/examples/device/net_lwip_webserver/src/usb_descriptors.c index 09090bb92..85a6a420c 100644 --- a/examples/device/net_lwip_webserver/src/usb_descriptors.c +++ b/examples/device/net_lwip_webserver/src/usb_descriptors.c @@ -27,16 +27,8 @@ #include "class/net/net_device.h" #include "tusb.h" -/* A combination of interfaces must have a unique product id, since PC will save device driver after the first plug. - * Same VID/PID with different interface e.g MSC (first), then CDC (later) will possibly cause system error on PC. - * - * Auto ProductID layout's Bitmap: - * [MSB] NET | VENDOR | MIDI | HID | MSC | CDC [LSB] - */ -#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(VENDOR, 4) | \ - PID_MAP(ECM_RNDIS, 5) | PID_MAP(NCM, 5)) +// Unique PID per example: guarantees re-enumeration on re-flash and a fresh host driver match. +#define USB_PID 0x4018 // String Descriptor Index enum { |