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[linux-dvb] Re: Patch: current I2C trasnition broke KNC1 type cards
On Monday 21 June 2004 10:26, Kenneth Aafløy wrote:
> On Monday 21 June 2004 09:39, Uli Luckas wrote:
> > Am Montag, 21. Juni 2004 01:08 schrieb Kenneth Aafløy:
> > > Could not this be better handled by some binary identifyer for each
> > > cardtype? That is what it becomes after the string parsing at least.
> >
> > Well, that would be nice. But as far as I understand the drivers are
> > using the kernel I2C API where we don't pass any data directly to the
> > frontend. The frontend is attached by the kernel which passes struct
> > i2c_adapter. This is why an existing field from i2c_adapter has to be
> > abused here.
>
> Is not this what i2c_adapter->algo_data is for? Stuffing private data in,
> and as far as I can see it's unused.
Sorry for not waking up before typing, as the saa7146_dev is already available
in i2c_adapter->dev->driver_data. There is a lot of common data in the
structures av7110 and budget, below is a suggestion on how we might combine
these two, and also get rid of the strcmp stuff all in one. I've not looked
very hard at the ttusb_dec, ttusb, adapter (skystar2.c) structs, but I belive
that they contain somthing like this in common too.
Kenneth
struct dvb_extension {
char* name;
#define BUDGET_TT 0
#define BUDGET_TT_HW_DISEQC 1
#define BUDGET_KNC1 2
#define BUDGET_PATCH 3
#define BUDGET_FS_ACTIVY 4
#define ....
u32 id;
struct dvb_device dvb_dev;
struct dvb_net dvb_net;
struct saa7146_dev *dev;
struct dvb_i2c_bus *i2c_bus;
struct i2c_adapter i2c_adap;
struct dmxdev dmxdev;
struct dvb_demux demux;
/* not sure on these, was not common in the first place,
* but maybe they should be. */
struct dvb_device *video_dev;
struct dvb_device *audio_dev;
struct dvb_device *ca_dev;
struct dvb_device *osd_dev;
struct dmx_frontend hw_frontend;
struct dmx_frontend mem_frontend;
struct dvb_adapter *dvb_adapter;
void *ext_priv;
};
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