On Tue, Jul 20, 2004 at 02:37:04PM +0200, Johannes Stezenbach wrote: > Hi Gerd, > > I hope you don't mind if I address you directly in this > thread, I don't know if you're still reading linux-dvb.
I'm still subscribed, but read it _very_ briefly only at the moment ... > What's your opinion on this matter? Would you accept a patch > for bttv-i2c to expose the hooks required by DVB? Or do can > you propose a different solution? In 2.6 the hooks are there already. It's done via sysfs. You'll have to register as sub-driver via bttv_sub_register(). bttv creates virtual devices and if a matching driver exists it will be attached. The sub-drivers get passed a pointer to struct bttv_core which should have everything you need. There are a few helper functions for gpio access which accept bttv_core to identify the correct card. There is a pointer to the pci_dev, so you can look for the matching .1 pci function for ts stream xfer. And also a pointer to i2c_adapter, so you can do any i2c transfers you want using the usual functions (i2c_master_* in i2c-core.c). I think right now only ir-kbd-gpio.c uses that interface, so you can have a look there for sample code. Gerd -- return -ENOSIG;
