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From: Greg KH on 11 Aug 2010 20:10
2.6.34-stable review patch. If anyone has any objections, please let us know.

------------------

From: Phil Dibowitz <phil(a)ipom.com>

commit 93362a875fc69881ae69299efaf19a55a1f57db0 upstream.

The Logitech Harmony 700 series needs an extra delay during
initialization. This patch adds a USB quirk which enables such a delay
and adds the device to the quirks list.

Signed-off-by: Phil Dibowitz <phil(a)ipom.com>
Signed-off-by: Greg Kroah-Hartman <gregkh(a)suse.de>

---
drivers/usb/core/hub.c | 6 +++++-
drivers/usb/core/quirks.c | 3 +++
include/linux/usb/quirks.h | 4 ++++
3 files changed, 12 insertions(+), 1 deletion(-)

--- a/drivers/usb/core/hub.c
+++ b/drivers/usb/core/hub.c
@@ -23,6 +23,7 @@
#include <linux/mutex.h>
#include <linux/freezer.h>
#include <linux/pm_runtime.h>
+#include <linux/usb/quirks.h>

#include <asm/uaccess.h>
#include <asm/byteorder.h>
@@ -1790,7 +1791,6 @@ int usb_new_device(struct usb_device *ud
pm_runtime_set_active(&udev->dev);
pm_runtime_enable(&udev->dev);

- usb_detect_quirks(udev);
err = usb_enumerate_device(udev); /* Read descriptors */
if (err < 0)
goto fail;
@@ -3100,6 +3100,10 @@ static void hub_port_connect_change(stru
if (status < 0)
goto loop;

+ usb_detect_quirks(udev);
+ if (udev->quirks & USB_QUIRK_DELAY_INIT)
+ msleep(1000);
+
/* consecutive bus-powered hubs aren't reliable; they can
* violate the voltage drop budget. if the new child has
* a "powered" LED, users should notice we didn't enable it
--- a/drivers/usb/core/quirks.c
+++ b/drivers/usb/core/quirks.c
@@ -38,6 +38,9 @@ static const struct usb_device_id usb_qu
/* Creative SB Audigy 2 NX */
{ USB_DEVICE(0x041e, 0x3020), .driver_info = USB_QUIRK_RESET_RESUME },

+ /* Logitech Harmony 700-series */
+ { USB_DEVICE(0x046d, 0xc122), .driver_info = USB_QUIRK_DELAY_INIT },
+
/* Philips PSC805 audio device */
{ USB_DEVICE(0x0471, 0x0155), .driver_info = USB_QUIRK_RESET_RESUME },

--- a/include/linux/usb/quirks.h
+++ b/include/linux/usb/quirks.h
@@ -22,4 +22,8 @@
/*device will morph if reset, don't use reset for handling errors */
#define USB_QUIRK_RESET_MORPHS 0x00000010

+/* device needs a pause during initialization, after we read the device
+ descriptor */
+#define USB_QUIRK_DELAY_INIT 0x00000040
+
#endif /* __LINUX_USB_QUIRKS_H */


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