diff options
Diffstat (limited to 'examples/device/webusb_serial/src/usb_descriptors.c')
| -rw-r--r-- | examples/device/webusb_serial/src/usb_descriptors.c | 8 |
1 files changed, 5 insertions, 3 deletions
diff --git a/examples/device/webusb_serial/src/usb_descriptors.c b/examples/device/webusb_serial/src/usb_descriptors.c index 1a2df76ca..4aefdb1f7 100644 --- a/examples/device/webusb_serial/src/usb_descriptors.c +++ b/examples/device/webusb_serial/src/usb_descriptors.c @@ -99,10 +99,10 @@ uint8_t const desc_configuration[] = TUD_CONFIG_DESCRIPTOR(1, ITF_NUM_TOTAL, 0, CONFIG_TOTAL_LEN, TUSB_DESC_CONFIG_ATT_REMOTE_WAKEUP, 100), // Interface number, string index, EP notification address and size, EP data address (out, in) and size. - TUD_CDC_DESCRIPTOR(ITF_NUM_CDC, 4, 0x81, 8, EPNUM_CDC, 0x80 | EPNUM_CDC, 64), + TUD_CDC_DESCRIPTOR(ITF_NUM_CDC, 4, 0x81, 8, EPNUM_CDC, 0x80 | EPNUM_CDC, TUD_OPT_HIGH_SPEED ? 512 : 64), // Interface number, string index, EP Out & IN address, EP size - TUD_VENDOR_DESCRIPTOR(ITF_NUM_VENDOR, 5, EPNUM_VENDOR, 0x80 | EPNUM_VENDOR, 64) + TUD_VENDOR_DESCRIPTOR(ITF_NUM_VENDOR, 5, EPNUM_VENDOR, 0x80 | EPNUM_VENDOR, TUD_OPT_HIGH_SPEED ? 512 : 64) }; // Invoked when received GET CONFIGURATION DESCRIPTOR @@ -216,7 +216,8 @@ uint16_t const* tud_descriptor_string_cb(uint8_t index, uint16_t langid) chr_count = 1; }else { - // Convert ASCII string into UTF-16 + // Note: the 0xEE index string is a Microsoft OS 1.0 Descriptors. + // https://docs.microsoft.com/en-us/windows-hardware/drivers/usbcon/microsoft-defined-usb-descriptors if ( !(index < sizeof(string_desc_arr)/sizeof(string_desc_arr[0])) ) return NULL; @@ -226,6 +227,7 @@ uint16_t const* tud_descriptor_string_cb(uint8_t index, uint16_t langid) chr_count = strlen(str); if ( chr_count > 31 ) chr_count = 31; + // Convert ASCII string into UTF-16 for(uint8_t i=0; i<chr_count; i++) { _desc_str[1+i] = str[i]; |