[pvrusb2] read attempt on video device leads to error messages

[Lars Schillingmann]

Am Samstag, 15. Oktober 2005 18:37 schrieb Mike Isely:
> Experiment #1:
>
>    Unplug the PVR USB2 device
>
>    modprobe -r saa7115
>    modprobe -r pcf8574
>    modprobe -r pvrusb2
>    modprobe saa7115
>    modprobe pcf8574
>
>    Plug the device in.  Does it work?

Works.

> Experiment #2:
>
>    Unplug the PVR USB2 device
>
>    modprobe -r saa7115
>    modprobe -r pcf8574
>    modprobe -r pvrusb2
>    modprobe pcf8574
>    modprobe saa7115
>
>    Plug the device in.  Does it work?

Does not work.

> The only difference here is the order of loading of saa7115 and pcf8574.
> You must make sure they're unloaded in order to affect their load order,
> and we're unloading pvrusb2 as well just 'cause we're paranoid...  In
> theory, one of those orders is going to work and the other will fail.
> Have you tried this?

You were right. I was quite sure i loaded the pcf driver before the pvrusb on 
my own test. But it seems i made a mistake.
  -Lars