* PCI multimedia driver
@ 2016-01-13 15:13 Joao Pinto
2016-01-13 15:35 ` Hans Verkuil
0 siblings, 1 reply; 3+ messages in thread
From: Joao Pinto @ 2016-01-13 15:13 UTC (permalink / raw)
To: linux-media; +Cc: Carlos Palminha, Filipe.Goncalves
Hi guys,
We are developing a PCI endpoint with HDMI video out and sound out capabilities
and we will need to develop a linux driver to control it (host side). Could you
please point us some existing driver example?
Thanks,
-Joao
^ permalink raw reply [flat|nested] 3+ messages in thread
* Re: PCI multimedia driver
2016-01-13 15:13 PCI multimedia driver Joao Pinto
@ 2016-01-13 15:35 ` Hans Verkuil
2016-01-13 15:35 ` Joao Pinto
0 siblings, 1 reply; 3+ messages in thread
From: Hans Verkuil @ 2016-01-13 15:35 UTC (permalink / raw)
To: Joao Pinto, linux-media; +Cc: Carlos Palminha, Filipe.Goncalves
On 01/13/16 16:13, Joao Pinto wrote:
> Hi guys,
>
> We are developing a PCI endpoint with HDMI video out and sound out capabilities
> and we will need to develop a linux driver to control it (host side). Could you
> please point us some existing driver example?
Assuming that you plan to use V4L2 as the API instead of DRM/KMS, then the best
reference driver is drivers/media/pci/cobalt.
The PCIe cobalt card has four HDMI input and (via a daughterboard) an optional
fifth input or an HDMI output.
You can ignore all the code for the input part and just look at the code for the
HDMI output (it uses the adv7511 as the i2c HDMI transmitter).
The driver supports audio too.
I assume the primary use is to stream video (V4L2) and not as a desktop/GUI output
(DRM/KMS)? If you want to use it for the latter, then this is the wrong mailinglist.
Regards,
Hans
^ permalink raw reply [flat|nested] 3+ messages in thread
* Re: PCI multimedia driver
2016-01-13 15:35 ` Hans Verkuil
@ 2016-01-13 15:35 ` Joao Pinto
0 siblings, 0 replies; 3+ messages in thread
From: Joao Pinto @ 2016-01-13 15:35 UTC (permalink / raw)
To: Hans Verkuil, Joao Pinto, linux-media; +Cc: Carlos Palminha, Filipe.Goncalves
Hi Hans,
Thanks for the information!
On 1/13/2016 3:35 PM, Hans Verkuil wrote:
> On 01/13/16 16:13, Joao Pinto wrote:
>> Hi guys,
>>
>> We are developing a PCI endpoint with HDMI video out and sound out capabilities
>> and we will need to develop a linux driver to control it (host side). Could you
>> please point us some existing driver example?
>
> Assuming that you plan to use V4L2 as the API instead of DRM/KMS, then the best
> reference driver is drivers/media/pci/cobalt.
>
> The PCIe cobalt card has four HDMI input and (via a daughterboard) an optional
> fifth input or an HDMI output.
>
> You can ignore all the code for the input part and just look at the code for the
> HDMI output (it uses the adv7511 as the i2c HDMI transmitter).
>
> The driver supports audio too.
>
> I assume the primary use is to stream video (V4L2) and not as a desktop/GUI output
> (DRM/KMS)? If you want to use it for the latter, then this is the wrong mailinglist.
>
> Regards,
>
> Hans
>
Regards,
Joao
^ permalink raw reply [flat|nested] 3+ messages in thread
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