USB: Add a new quirk: USB_QUIRK_HONOR_BNUMINTERFACES

Add a new quirk USB_QUIRK_HONOR_BNUMINTERFACES, when this quirk is
set and a device has more interface descriptors in a configuration
then it claims to have in config->bNumInterfaces, ignore all additional
interfaces.

This is needed for devices which try to hide unused interfaces by only
lowering config->bNumInterfaces, and which can't handle if you try to talk
to the "hidden" interfaces.

Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Acked-by: Alan Stern <stern@rowland.harvard.edu>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>

1 files changed, 4 insertions, 0 deletions

diff --git a/drivers/usb/core/quirks.c b/drivers/usb/core/quirks.c
index f073c5cb4e7..f22d03df8b1 100644
--- a/drivers/usb/core/quirks.c
+++ b/drivers/usb/core/quirks.c
@@ -71,6 +71,10 @@ static const struct usb_device_id usb_quirk_list[] = {
         /* SKYMEDI USB_DRIVE */
         { USB_DEVICE(0x1516, 0x8628), .driver_info = USB_QUIRK_RESET_RESUME },
 
+        /* BUILDWIN Photo Frame */
+        { USB_DEVICE(0x1908, 0x1315), .driver_info =
+                        USB_QUIRK_HONOR_BNUMINTERFACES },
+
         /* INTEL VALUE SSD */
         { USB_DEVICE(0x8086, 0xf1a5), .driver_info = USB_QUIRK_RESET_RESUME },