Hi,
a class driver should have suspend/resume. This makes sure we
don't see a virtual disconnect unnecessarily.
Regards
Oliver
Signed-off-by: Oliver Neukum <oliver@xxxxxxxxxx>
--
commit b9704b0137af301d12e1bee7a9a5d49c6b6eb89e
Author: Oliver Neukum <oneukum@linux-d698.(none)>
Date: Thu Jul 2 11:41:04 2009 +0200
usb: add suspend/resume support to usbtmc driver
nothing needs to be done, they just have to be present to
prevent a disconnection
diff --git a/drivers/usb/class/usbtmc.c b/drivers/usb/class/usbtmc.c
index 0006177..b391426 100644
--- a/drivers/usb/class/usbtmc.c
+++ b/drivers/usb/class/usbtmc.c
@@ -1087,11 +1087,24 @@ static void usbtmc_disconnect(struct usb_interface *intf)
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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