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V4L/DVB (7538): Adds selectable adapter numbers as per module option

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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>
This commit is contained in:
Janne Grunau
2008-04-09 19:13:13 -03:00
committed by Mauro Carvalho Chehab
parent 9950c1b5b4
commit 78e92006f4
37 changed files with 242 additions and 83 deletions
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9
drivers/media/dvb/dvb-usb/dvb-usb-dvb.c
View File

@@ -77,12 +77,13 @@ static int dvb_usb_stop_feed(struct dvb_demux_feed *dvbdmxfeed)
return dvb_usb_ctrl_feed(dvbdmxfeed,0);
}
int dvb_usb_adapter_dvb_init(struct dvb_usb_adapter *adap)
int dvb_usb_adapter_dvb_init(struct dvb_usb_adapter *adap, short *adapter_nums)
{
int ret;
int ret = dvb_register_adapter(&adap->dvb_adap, adap->dev->desc->name,
adap->dev->owner, &adap->dev->udev->dev,
adapter_nums);
if ((ret = dvb_register_adapter(&adap->dvb_adap, adap->dev->desc->name,
adap->dev->owner, &adap->dev->udev->dev)) < 0) {
if (ret < 0) {
deb_info("dvb_register_adapter failed: error %d", ret);
goto err;
}