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authorAlan Stern <stern@rowland.harvard.edu>2008-03-06 11:04:13 -0500
committerGreg Kroah-Hartman <gregkh@suse.de>2008-04-24 21:16:33 -0700
commit9214d1d80c19016172e685ce7bde0ea757c49097 (patch)
tree1d8a2c03125a78c56c2d37fd18f08894772b0c26 /drivers/usb/core
parenteb764c4be1e5db3ee34df5745e98cf2f148c7320 (diff)
USB: enable USB-PERSIST by default
This patch (as1052) enables USB-PERSIST for all devices by default. The user won't have to remember to enable it explicitly for devices containing mounted filesystems. Eventually userspace tools like hal may be able to set the persist attribute automatically when a filesystem is mounted on a USB device. When that time comes this patch can be reverted, if people think it matters. This approach has the advantage of giving the user the ability to turn off USB-PERSIST for devices with mounted filesystems, rather than making the kernel always assume it should be on. Signed-off-by: Alan Stern <stern@rowland.harvard.edu> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Diffstat (limited to 'drivers/usb/core')
-rw-r--r--drivers/usb/core/quirks.c6
1 files changed, 4 insertions, 2 deletions
diff --git a/drivers/usb/core/quirks.c b/drivers/usb/core/quirks.c
index f384edf35b4..2e201939029 100644
--- a/drivers/usb/core/quirks.c
+++ b/drivers/usb/core/quirks.c
@@ -98,12 +98,14 @@ void usb_detect_quirks(struct usb_device *udev)
udev->autosuspend_disabled = 1;
#endif
-#ifdef CONFIG_PM
+ /* For the present, all devices default to USB-PERSIST enabled */
+#if 0 /* was: #ifdef CONFIG_PM */
/* Hubs are automatically enabled for USB-PERSIST */
if (udev->descriptor.bDeviceClass == USB_CLASS_HUB)
udev->persist_enabled = 1;
+
#else
- /* In the absense of PM, we can safely enable USB-PERSIST
+ /* In the absence of PM, we can safely enable USB-PERSIST
* for all devices. It will affect things like hub resets
* and EMF-related port disables.
*/