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authorDave Airlie <airlied@redhat.com>2014-08-05 09:04:59 +1000
committerDave Airlie <airlied@redhat.com>2014-08-05 09:04:59 +1000
commit5d42f82a9b8c5168d75cf59307cd271feca94464 (patch)
treea7049189a2c814589b3ad7e6e776fb736f980967 /drivers/net/usb/cdc_ether.c
parentc759606c96dc052373d4c36ea383595da46b04e9 (diff)
parent19583ca584d6f574384e17fe7613dfaeadcdc4a6 (diff)
Merge tag 'v3.16' into drm-next
Linux 3.16 backmerge requested by i915, nouveau and radeon authors Conflicts: drivers/gpu/drm/i915/i915_gem_render_state.c drivers/gpu/drm/i915/intel_drv.h
Diffstat (limited to 'drivers/net/usb/cdc_ether.c')
-rw-r--r--drivers/net/usb/cdc_ether.c16
1 files changed, 16 insertions, 0 deletions
diff --git a/drivers/net/usb/cdc_ether.c b/drivers/net/usb/cdc_ether.c
index 9ea4bfe5d31..2a32d9167d3 100644
--- a/drivers/net/usb/cdc_ether.c
+++ b/drivers/net/usb/cdc_ether.c
@@ -341,6 +341,22 @@ next_desc:
usb_driver_release_interface(driver, info->data);
return -ENODEV;
}
+
+ /* Some devices don't initialise properly. In particular
+ * the packet filter is not reset. There are devices that
+ * don't do reset all the way. So the packet filter should
+ * be set to a sane initial value.
+ */
+ usb_control_msg(dev->udev,
+ usb_sndctrlpipe(dev->udev, 0),
+ USB_CDC_SET_ETHERNET_PACKET_FILTER,
+ USB_TYPE_CLASS | USB_RECIP_INTERFACE,
+ USB_CDC_PACKET_TYPE_ALL_MULTICAST | USB_CDC_PACKET_TYPE_DIRECTED | USB_CDC_PACKET_TYPE_BROADCAST,
+ intf->cur_altsetting->desc.bInterfaceNumber,
+ NULL,
+ 0,
+ USB_CTRL_SET_TIMEOUT
+ );
return 0;
bad_desc: