On Monday 30 March 2009 13:31:55 Mauro Carvalho Chehab wrote:
> On Sun, 29 Mar 2009 15:36:46 +0200
> Hans Verkuil <hverk...@xs4all.nl> wrote:
>
> > Hi Mauro,
> >
> > Please pull from http://www.linuxtv.org/hg/~hverkuil/v4l-dvb-cx88 for the
> > following:
> >
> > - cx88: convert to v4l2_subdev.
>
> I only noticed this, when I tried to compile with an old kernel:
>
> diff --git a/linux/drivers/media/video/cx88/cx88-video.c
> b/linux/drivers/media/
> video/cx88/cx88-video.c
> <snip/>
> +#if LINUX_VERSION_CODE >= KERNEL_VERSION(2, 6, 22)
> + static struct i2c_board_info rtc_info = {
> + I2C_BOARD_INFO("isl1208", 0x6f)
> + };
> +
> request_module("rtc-isl1208");
> + core->i2c_rtc = i2c_new_device(&core->i2c_adap, &rtc_info);
> +#else
> + request_module("rtc-isl1208");
> +#endif
> + }
>
> Where is the isl1208 driver? I can't see it.
It's an rtc (real-time clock) driver that's part of the drivers/rtc
subdirectory in the kernel. Apparently this particular board needs to set up
this rtc device by loading this driver for proper operation.
> For what purpose we need this driver? The other Isil drivers are power control
> drivers for DVB. If this is the case, we should move this code to cx88-dvb.
It's perfectly OK where it is. But since that driver was also converted to
the new style API we need to use i2c_new_device to load it since just calling
request_module will no longer work for this driver. Hence this change in the
code.
Regards,
Hans
--
Hans Verkuil - video4linux developer - sponsored by TANDBERG
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