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| author | Alexey Klimov <klimov.linux@gmail.com> | 2008-11-08 06:40:46 +0300 |
|---|---|---|
| committer | Mauro Carvalho Chehab <mchehab@redhat.com> | 2008-12-29 22:53:30 +0300 |
| commit | 04e0ffbbdd297fac1d8a5696b5d27887d6ff3dc2 (patch) | |
| tree | 4941dc70ad82cd68487955b90c6ca4ebe0d6bed0 /drivers/media/radio/dsbr100.c | |
| parent | f34253dfe66ff365a794eeddbe240b4bfd8e32eb (diff) | |
| download | linux-04e0ffbbdd297fac1d8a5696b5d27887d6ff3dc2.tar.xz | |
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.c | 45 |
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, |