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authorAlan Stern <stern@rowland.harvard.edu>2005-10-19 19:06:13 +0200
committerGreg Kroah-Hartman <gregkh@suse.de>2005-10-29 01:47:49 +0200
commit423e489d704d05c6e8c2927fb1854db85914912a (patch)
treea4045f348d2b2ddd232ae6eddf103ccc32e7c5a6 /drivers/usb/input
parent[PATCH] USB: Always do usb-handoff (diff)
downloadlinux-423e489d704d05c6e8c2927fb1854db85914912a.tar.xz
linux-423e489d704d05c6e8c2927fb1854db85914912a.zip
[PATCH] hid-core: Add Clear-Halt on the Interrupt-in endpoint
This patch (as577) adds a Clear-Halt call on the Interrupt-in endpoint during input device configuration. Without it my HP USB keyboard doesn't work. Vojtech says it's worth trying, since it might help with some recalcitrant devices. On the other hand, it might interfere with others. I'm submitting it so that it can get tested by a range of users. Signed-off-by: Alan Stern <stern@rowland.harvard.edu> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Diffstat (limited to 'drivers/usb/input')
-rw-r--r--drivers/usb/input/hid-core.c3
1 files changed, 3 insertions, 0 deletions
diff --git a/drivers/usb/input/hid-core.c b/drivers/usb/input/hid-core.c
index f7fcce731f54..79ddce4555ab 100644
--- a/drivers/usb/input/hid-core.c
+++ b/drivers/usb/input/hid-core.c
@@ -1784,6 +1784,9 @@ static struct hid_device *usb_hid_configure(struct usb_interface *intf)
hid->urbctrl->transfer_dma = hid->ctrlbuf_dma;
hid->urbctrl->transfer_flags |= (URB_NO_TRANSFER_DMA_MAP | URB_NO_SETUP_DMA_MAP);
+ /* May be needed for some devices */
+ usb_clear_halt(hid->dev, hid->urbin->pipe);
+
return hid;
fail: