This is a note to let you know that I've just added the patch titled
Subject: USB: suspend/resume support for usbtmc
to my gregkh-2.6 tree. Its filename is
usb-suspend-resume-support-for-usbtmc.patch
This tree can be found at
http://www.kernel.org/pub/linux/kernel/people/gregkh/gregkh-2.6/patches/
>From oliver@xxxxxxxxxx Fri Jul 10 15:17:33 2009
From: Oliver Neukum <oliver@xxxxxxxxxx>
Date: Thu, 2 Jul 2009 11:44:33 +0200
Subject: USB: suspend/resume support for usbtmc
To: greg@xxxxxxxxx, USB list <linux-usb@xxxxxxxxxxxxxxx>
Message-ID: <200907021144.33515.oliver@xxxxxxxxxx>
a class driver should have suspend/resume. This makes sure we
don't see a virtual disconnect unnecessarily.
Signed-off-by: Oliver Neukum <oliver@xxxxxxxxxx>
Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxx>
---
drivers/usb/class/usbtmc.c | 15 ++++++++++++++-
1 file changed, 14 insertions(+), 1 deletion(-)
--- a/drivers/usb/class/usbtmc.c
+++ b/drivers/usb/class/usbtmc.c
@@ -1087,11 +1087,24 @@ static void usbtmc_disconnect(struct usb
kref_put(&data->kref, usbtmc_delete);
}
+static int usbtmc_suspend (struct usb_interface *intf, pm_message_t message)
+{
+ /* this driver does not have pending URBs */
+ return 0;
+}
+
+static int usbtmc_resume (struct usb_interface *intf)
+{
+ return 0;
+}
+
static struct usb_driver usbtmc_driver = {
.name = "usbtmc",
.id_table = usbtmc_devices,
.probe = usbtmc_probe,
- .disconnect = usbtmc_disconnect
+ .disconnect = usbtmc_disconnect,
+ .suspend = usbtmc_suspend,
+ .resume = usbtmc_resume,
};
static int __init usbtmc_init(void)
--
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