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Red Hat Bugzilla – Attachment 592277 Details for
Bug 832188
new kernel support for udl (displaylink) is breaking/masking non-display devices
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[patch]
fix
0001-drm-udl-only-bind-to-the-video-devices-on-the-hub.patch (text/plain), 1.50 KB, created by
Dave Airlie
on 2012-06-16 06:49:16 UTC
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Description:
fix
Filename:
MIME Type:
Creator:
Dave Airlie
Created:
2012-06-16 06:49:16 UTC
Size:
1.50 KB
patch
obsolete
>From a1d78d1c9b8a39cd90b6ee28fdbcf0ce06eebd7d Mon Sep 17 00:00:00 2001 >From: Dave Airlie <airlied@redhat.com> >Date: Sat, 16 Jun 2012 07:41:28 +0100 >Subject: [PATCH] drm/udl: only bind to the video devices on the hub. > >This is ported from udlfb. > >Bugzilla: https://bugzilla.redhat.com/show_bug.cgi?id=832188 >Signed-off-by: Dave Airlie <airlied@redhat.com> >--- > drivers/gpu/drm/udl/udl_drv.c | 15 ++++++++++++++- > 1 file changed, 14 insertions(+), 1 deletion(-) > >diff --git a/drivers/gpu/drm/udl/udl_drv.c b/drivers/gpu/drm/udl/udl_drv.c >index 4d02c46..6e52069 100644 >--- a/drivers/gpu/drm/udl/udl_drv.c >+++ b/drivers/gpu/drm/udl/udl_drv.c >@@ -13,8 +13,21 @@ > > static struct drm_driver driver; > >+/* >+ * There are many DisplayLink-based graphics products, all with unique PIDs. >+ * So we match on DisplayLink's VID + Vendor-Defined Interface Class (0xff) >+ * We also require a match on SubClass (0x00) and Protocol (0x00), >+ * which is compatible with all known USB 2.0 era graphics chips and firmware, >+ * but allows DisplayLink to increment those for any future incompatible chips >+ */ > static struct usb_device_id id_table[] = { >- {.idVendor = 0x17e9, .match_flags = USB_DEVICE_ID_MATCH_VENDOR,}, >+ {.idVendor = 0x17e9, .bInterfaceClass = 0xff, >+ .bInterfaceSubClass = 0x00, >+ .bInterfaceProtocol = 0x00, >+ .match_flags = USB_DEVICE_ID_MATCH_VENDOR | >+ USB_DEVICE_ID_MATCH_INT_CLASS | >+ USB_DEVICE_ID_MATCH_INT_SUBCLASS | >+ USB_DEVICE_ID_MATCH_INT_PROTOCOL,}, > {}, > }; > MODULE_DEVICE_TABLE(usb, id_table); >-- >1.7.10.2 >
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Attachments on
bug 832188
: 592277