diff options
| author | Andrey Konovalov <andreyknvl@google.com> | 2019-09-19 18:42:17 +0200 |
|---|---|---|
| committer | Andrey Konovalov <andreyknvl@gmail.com> | 2019-09-19 19:31:56 +0200 |
| commit | 0c00210ff32f64808e2ab7a38feae960f3981ccf (patch) | |
| tree | 4099d896bcb6757464a51763d394c2d8588f38dc /executor/common_usb.h | |
| parent | b4680d8341733f48295ccf188f109cf69027a3f9 (diff) | |
executor: always provide DEVICE_QUALIFIER USB descriptor
Diffstat (limited to 'executor/common_usb.h')
| -rw-r--r-- | executor/common_usb.h | 16 |
1 files changed, 16 insertions, 0 deletions
diff --git a/executor/common_usb.h b/executor/common_usb.h index 6e181836e..c4b9e96ac 100644 --- a/executor/common_usb.h +++ b/executor/common_usb.h @@ -236,6 +236,22 @@ static bool lookup_connect_response(struct vusb_connect_descriptors* descs, stru *response_length = descs->bos_len; return true; case USB_DT_DEVICE_QUALIFIER: + if (!descs->qual) { + // Fill in DEVICE_QUALIFIER based on DEVICE if not provided. + struct usb_qualifier_descriptor* qual = + (struct usb_qualifier_descriptor*)response_data; + qual->bLength = sizeof(*qual); + qual->bDescriptorType = USB_DT_DEVICE_QUALIFIER; + qual->bcdUSB = index->dev->bcdUSB; + qual->bDeviceClass = index->dev->bDeviceClass; + qual->bDeviceSubClass = index->dev->bDeviceSubClass; + qual->bDeviceProtocol = index->dev->bDeviceProtocol; + qual->bMaxPacketSize0 = index->dev->bMaxPacketSize0; + qual->bNumConfigurations = index->dev->bNumConfigurations; + qual->bRESERVED = 0; + *response_length = sizeof(*qual); + return true; + } *response_data = descs->qual; *response_length = descs->qual_len; return true; |