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[PATCH] USB: PM support for zd1201

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This patch enables power management (suspend, resume) support for zd1201.
It fixes problems after wakeup for me, but these problems did not appear
everytime without this patch.  it's a bit empirical, based on what the
usbnet does, so maybe not correct...  Maybe someone can give it a look
before it's applied.

Signed-off-by: Colin Leroy <colin@colino.net>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
This commit is contained in:
Colin Leroy
2005-04-24 16:37:15 -07:00
committed by Greg Kroah-Hartman
parent 507ca9bc04
commit a3c900bb8c
2 changed files with 39 additions and 0 deletions
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38
drivers/usb/net/zd1201.c
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@@ -1884,12 +1884,50 @@ static void zd1201_disconnect(struct usb_interface *interface)
kfree(zd);
}
#ifdef CONFIG_PM
static int zd1201_suspend(struct usb_interface *interface,
pm_message_t message)
{
struct zd1201 *zd = usb_get_intfdata(interface);
netif_device_detach(zd->dev);
zd->was_enabled = zd->mac_enabled;
if (zd->was_enabled)
return zd1201_disable(zd);
else
return 0;
}
static int zd1201_resume(struct usb_interface *interface)
{
struct zd1201 *zd = usb_get_intfdata(interface);
netif_device_attach(zd->dev);
if (zd->was_enabled)
return zd1201_enable(zd);
else
return 0;
}
#else
#define zd1201_suspend NULL
#define zd1201_resume NULL
#endif
static struct usb_driver zd1201_usb = {
.owner = THIS_MODULE,
.name = "zd1201",
.probe = zd1201_probe,
.disconnect = zd1201_disconnect,
.id_table = zd1201_table,
.suspend = zd1201_suspend,
.resume = zd1201_resume,
};
static int __init zd1201_init(void)