Re: RFC: Negotiating frame buffer size between sensor subdevs and bridge devices

2011-08-20 Thread Guennadi Liakhovetski
On Wed, 17 Aug 2011, Sakari Ailus wrote: On Thu, Jul 28, 2011 at 07:04:11PM +0200, Sylwester Nawrocki wrote: Hello, Hi Sylwester, Trying to capture images in JPEG format with regular image sensor - mipi-csi receiver - host interface H/W configuration I've found there is no standard

Re: RFC: Negotiating frame buffer size between sensor subdevs and bridge devices

2011-08-20 Thread Sylwester Nawrocki
On 08/17/2011 07:43 PM, Guennadi Liakhovetski wrote: On Wed, 17 Aug 2011, Sakari Ailus wrote: On Thu, Jul 28, 2011 at 07:04:11PM +0200, Sylwester Nawrocki wrote: ... In order to let the host drivers query or configure subdevs with required frame buffer size one of the following changes could

RE: RFC: Negotiating frame buffer size between sensor subdevs and bridge devices

2011-08-19 Thread Sylwester Nawrocki
Hi Sakari, On 08/18/2011 10:32 PM, Sakari Ailus wrote: In order to let the host drivers query or configure subdevs with required frame buffer size one of the following changes could be done at V4L2 API: 1. Add a 'sizeimage' field in struct v4l2_mbus_framefmt and make subdev drivers

Re: RFC: Negotiating frame buffer size between sensor subdevs and bridge devices

2011-08-18 Thread Sakari Ailus
On Wed, Aug 17, 2011 at 10:22:26PM +0200, Sylwester Nawrocki wrote: On 08/17/2011 12:25 AM, Sakari Ailus wrote: On Thu, Jul 28, 2011 at 07:04:11PM +0200, Sylwester Nawrocki wrote: Hello, Hi Sylwester, Hi Sakari, kiitos commentti ;) Hi Sylwester! Ole hyvä! :) Trying to

Re: RFC: Negotiating frame buffer size between sensor subdevs and bridge devices

2011-08-17 Thread Sylwester Nawrocki
On 08/17/2011 12:25 AM, Sakari Ailus wrote: On Thu, Jul 28, 2011 at 07:04:11PM +0200, Sylwester Nawrocki wrote: Hello, Hi Sylwester, Hi Sakari, kiitos commentti ;) Trying to capture images in JPEG format with regular image sensor - mipi-csi receiver - host interface H/W configuration

RFC: Negotiating frame buffer size between sensor subdevs and bridge devices

2011-07-28 Thread Sylwester Nawrocki
Hello, Trying to capture images in JPEG format with regular image sensor - mipi-csi receiver - host interface H/W configuration I've found there is no standard way to communicate between the sensor subdev and the host driver what is exactly a required maximum buffer size to capture a frame. For