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| author | Oliver Neukum <oliver@neukum.org> | 2009-07-02 11:44:33 +0200 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@suse.de> | 2009-09-23 06:46:28 -0700 |
| commit | a4708103adeaf5731c329b37b0a2b397f814c55c (patch) | |
| tree | 24c3fb1c0f54058eed87dd3cbff2e690d7313e15 /drivers/usb/class/usbtmc.c | |
| parent | 86286883fc8218c81cc1deb04cd1b4a8464bba6f (diff) | |
| download | lwn-a4708103adeaf5731c329b37b0a2b397f814c55c.tar.gz lwn-a4708103adeaf5731c329b37b0a2b397f814c55c.zip | |
USB: suspend/resume support for usbtmc
a class driver should have suspend/resume. This makes sure we
don't see a virtual disconnect unnecessarily.
Signed-off-by: Oliver Neukum <oliver@neukum.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Diffstat (limited to 'drivers/usb/class/usbtmc.c')
| -rw-r--r-- | drivers/usb/class/usbtmc.c | 15 |
1 files changed, 14 insertions, 1 deletions
diff --git a/drivers/usb/class/usbtmc.c b/drivers/usb/class/usbtmc.c index 0c9df97f6775..4f0858fbf980 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) |