diff options
Diffstat (limited to 'drivers/usb/gadget/function/f_uvc.c')
| -rw-r--r-- | drivers/usb/gadget/function/f_uvc.c | 9 |
1 files changed, 9 insertions, 0 deletions
diff --git a/drivers/usb/gadget/function/f_uvc.c b/drivers/usb/gadget/function/f_uvc.c index 835e121a806f..443333471b4d 100644 --- a/drivers/usb/gadget/function/f_uvc.c +++ b/drivers/usb/gadget/function/f_uvc.c @@ -865,6 +865,13 @@ static struct usb_function_instance *uvc_alloc_inst(void) od->bSourceID = 2; od->iTerminal = 0; + /* + * With the ability to add XUs to the UVC function graph, we need to be + * able to allocate unique unit IDs to them. The IDs are 1-based, with + * the CT, PU and OT above consuming the first 3. + */ + opts->last_unit_id = 3; + /* Prepare fs control class descriptors for configfs-based gadgets */ ctl_cls = opts->uvc_fs_control_cls; ctl_cls[0] = NULL; /* assigned elsewhere by configfs */ @@ -885,6 +892,8 @@ static struct usb_function_instance *uvc_alloc_inst(void) opts->ss_control = (const struct uvc_descriptor_header * const *)ctl_cls; + INIT_LIST_HEAD(&opts->extension_units); + opts->streaming_interval = 1; opts->streaming_maxpacket = 1024; snprintf(opts->function_name, sizeof(opts->function_name), "UVC Camera"); |