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authorJanne Grunau <janne-dvb@grunau.be>2008-04-10 02:13:13 +0400
committerMauro Carvalho Chehab <mchehab@infradead.org>2008-04-24 21:08:00 +0400
commit78e92006f410a4044f8c1760c25ac9d11d259aa2 (patch)
tree293de8abe261420df2db5e12936ec2721ea52c7c /drivers/media/dvb/ttusb-budget
parent9950c1b5b4b86d4aae12853c2f0a0ef11d976764 (diff)
downloadlinux-78e92006f410a4044f8c1760c25ac9d11d259aa2.tar.xz
V4L/DVB (7538): Adds selectable adapter numbers as per module option
The adapter_nr module options can be used to allocate static adapter numbers on a driver level. It avoids problems with changing DVB apapter numbers after warm/cold boot or device unplugging and repluging. Each driver holds DVB_MAX_ADAPTER long array of the preferred order of adapter numbers. options dvb-usb-dib0700 adapter_nr=7,6,5,4,3,2,1,0 would result in a reversed allocation of adapter numbers. With adapter_nr=2,5 it tries first to get adapter number 2 and 5. If both are already in use it will allocate the lowest free adapter number. Signed-off-by: Janne Grunau <janne-dvb@grunau.be> Acked-by: Hermann Pitton <hermann.pitton@arcor.de> Signed-off-by: Michael Krufky <mkrufky@linuxtv.org> Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>
Diffstat (limited to 'drivers/media/dvb/ttusb-budget')
-rw-r--r--drivers/media/dvb/ttusb-budget/dvb-ttusb-budget.c8
1 files changed, 6 insertions, 2 deletions
diff --git a/drivers/media/dvb/ttusb-budget/dvb-ttusb-budget.c b/drivers/media/dvb/ttusb-budget/dvb-ttusb-budget.c
index 317eccbe5c66..46dc4a3fcb6c 100644
--- a/drivers/media/dvb/ttusb-budget/dvb-ttusb-budget.c
+++ b/drivers/media/dvb/ttusb-budget/dvb-ttusb-budget.c
@@ -56,10 +56,11 @@
*/
static int debug;
-
module_param(debug, int, 0644);
MODULE_PARM_DESC(debug, "Turn on/off debugging (default:off).");
+DVB_DEFINE_MOD_OPT_ADAPTER_NR(adapter_nr);
+
#define dprintk(x...) do { if (debug) printk(KERN_DEBUG x); } while (0)
#define ISO_BUF_COUNT 4
@@ -1669,7 +1670,10 @@ static int ttusb_probe(struct usb_interface *intf, const struct usb_device_id *i
mutex_unlock(&ttusb->semi2c);
- if ((result = dvb_register_adapter(&ttusb->adapter, "Technotrend/Hauppauge Nova-USB", THIS_MODULE, &udev->dev)) < 0) {
+ result = dvb_register_adapter(&ttusb->adapter,
+ "Technotrend/Hauppauge Nova-USB",
+ THIS_MODULE, &udev->dev, adapter_nr);
+ if (result < 0) {
ttusb_free_iso_urbs(ttusb);
kfree(ttusb);
return result;