From 9214d1d80c19016172e685ce7bde0ea757c49097 Mon Sep 17 00:00:00 2001 From: Alan Stern Date: Thu, 6 Mar 2008 11:04:13 -0500 Subject: [PATCH] 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 Signed-off-by: Greg Kroah-Hartman --- drivers/usb/core/quirks.c | 6 ++++-- 1 file changed, 4 insertions(+), 2 deletions(-) diff --git a/drivers/usb/core/quirks.c b/drivers/usb/core/quirks.c index f384edf35b44..2e2019390290 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. */