aboutsummaryrefslogtreecommitdiff
path: root/drivers/media/radio/dsbr100.c
diff options
context:
space:
mode:
authorAlexey Klimov <klimov.linux@gmail.com>2008-11-08 00:40:46 -0300
committerMauro Carvalho Chehab <mchehab@redhat.com>2008-12-29 17:53:30 -0200
commit04e0ffbbdd297fac1d8a5696b5d27887d6ff3dc2 (patch)
tree4941dc70ad82cd68487955b90c6ca4ebe0d6bed0 /drivers/media/radio/dsbr100.c
parentf34253dfe66ff365a794eeddbe240b4bfd8e32eb (diff)
downloadlinux-linaro-stable-04e0ffbbdd297fac1d8a5696b5d27887d6ff3dc2.tar.gz
V4L/DVB (9539): dsbr100: add suspend and resume
This patch adds support for suspend and resume methods in driver. Without this kradio and gnomeradio crashes during resume. Also .supports_autosuspend in usb_driver struct set equal to 0 to avoid suspending of module if usb_autosuspend enabled. Signed-off-by: Alexey Klimov <klimov.linux@gmail.com> Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
Diffstat (limited to 'drivers/media/radio/dsbr100.c')
-rw-r--r--drivers/media/radio/dsbr100.c45
1 files changed, 41 insertions, 4 deletions
diff --git a/drivers/media/radio/dsbr100.c b/drivers/media/radio/dsbr100.c
index a5ca176a7b08..e6485cfe1218 100644
--- a/drivers/media/radio/dsbr100.c
+++ b/drivers/media/radio/dsbr100.c
@@ -131,6 +131,9 @@ static int usb_dsbr100_probe(struct usb_interface *intf,
static void usb_dsbr100_disconnect(struct usb_interface *intf);
static int usb_dsbr100_open(struct inode *inode, struct file *file);
static int usb_dsbr100_close(struct inode *inode, struct file *file);
+static int usb_dsbr100_suspend(struct usb_interface *intf,
+ pm_message_t message);
+static int usb_dsbr100_resume(struct usb_interface *intf);
static int radio_nr = -1;
module_param(radio_nr, int, 0);
@@ -157,10 +160,14 @@ MODULE_DEVICE_TABLE (usb, usb_dsbr100_device_table);
/* USB subsystem interface */
static struct usb_driver usb_dsbr100_driver = {
- .name = "dsbr100",
- .probe = usb_dsbr100_probe,
- .disconnect = usb_dsbr100_disconnect,
- .id_table = usb_dsbr100_device_table,
+ .name = "dsbr100",
+ .probe = usb_dsbr100_probe,
+ .disconnect = usb_dsbr100_disconnect,
+ .id_table = usb_dsbr100_device_table,
+ .suspend = usb_dsbr100_suspend,
+ .resume = usb_dsbr100_resume,
+ .reset_resume = usb_dsbr100_resume,
+ .supports_autosuspend = 0,
};
/* Low-level device interface begins here */
@@ -448,6 +455,36 @@ static int usb_dsbr100_close(struct inode *inode, struct file *file)
return 0;
}
+/* Suspend device - stop device. */
+static int usb_dsbr100_suspend(struct usb_interface *intf, pm_message_t message)
+{
+ struct dsbr100_device *radio = usb_get_intfdata(intf);
+ int retval;
+
+ retval = dsbr100_stop(radio);
+ if (retval == -1)
+ dev_warn(&intf->dev, "dsbr100_stop failed\n");
+
+ dev_info(&intf->dev, "going into suspend..\n");
+
+ return 0;
+}
+
+/* Resume device - start device. */
+static int usb_dsbr100_resume(struct usb_interface *intf)
+{
+ struct dsbr100_device *radio = usb_get_intfdata(intf);
+ int retval;
+
+ retval = dsbr100_start(radio);
+ if (retval == -1)
+ dev_warn(&intf->dev, "dsbr100_start failed\n");
+
+ dev_info(&intf->dev, "coming out of suspend..\n");
+
+ return 0;
+}
+
/* File system interface */
static const struct file_operations usb_dsbr100_fops = {
.owner = THIS_MODULE,