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

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 > >

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 >>

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! :) > > >

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 c

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

2011-08-16 Thread Sakari Ailus
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 way to communicate between the sensor subd

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.