diff options
| author | Alan Stern <stern@rowland.harvard.edu> | 2008-03-03 23:15:59 +0300 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@suse.de> | 2008-04-25 08:16:32 +0400 |
| commit | feccc30d90155bcbc937f87643182a43d25873eb (patch) | |
| tree | 96394e24075a885f1a8bb3e53203f8397e78ea46 /drivers/usb/core/quirks.c | |
| parent | 5e6effaed6da94e727cd45f945ad2489af8570b3 (diff) | |
| download | linux-feccc30d90155bcbc937f87643182a43d25873eb.tar.xz | |
USB: remove CONFIG_USB_PERSIST setting
This patch (as1047) removes the USB_PERSIST Kconfig option, enabling
it permanently. It also prevents the power/persist attribute from
being created for hub devices; there's no point in having it since
USB-PERSIST is always turned on for hubs.
Signed-off-by: Alan Stern <stern@rowland.harvard.edu>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Diffstat (limited to 'drivers/usb/core/quirks.c')
| -rw-r--r-- | drivers/usb/core/quirks.c | 12 |
1 files changed, 12 insertions, 0 deletions
diff --git a/drivers/usb/core/quirks.c b/drivers/usb/core/quirks.c index dfc5418ea10c..f384edf35b44 100644 --- a/drivers/usb/core/quirks.c +++ b/drivers/usb/core/quirks.c @@ -97,4 +97,16 @@ void usb_detect_quirks(struct usb_device *udev) if (udev->descriptor.bDeviceClass != USB_CLASS_HUB) udev->autosuspend_disabled = 1; #endif + +#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 + * for all devices. It will affect things like hub resets + * and EMF-related port disables. + */ + udev->persist_enabled = 1; +#endif /* CONFIG_PM */ } |