Re: [PATCH 4/4] radio-si470x: Lower firmware version requirements

[Antti Palosaari <crope@iki.fi>]

Hello

On 07/09/2012 04:02 PM, Hans de Goede wrote:
> On 07/09/2012 01:58 PM, Antti Palosaari wrote:
>> On 07/09/2012 01:03 PM, Hans de Goede wrote:
>> If I tune using old radio it works. If I tune using latest radio but
>> with option -l 0 (./console/radio -l 0) it also works. Using "arecord
>> -D hw:2,0 -r96000 -c2 -f S16_LE | aplay -" to listen. So it seems that
>> latest radio with alsa loopback is only having those problems.
>>
>
> Ok.
>>
>> These are the patches:
>> radio-si470x: Don't unnecesarily read registers on G_TUNER
>> radio-si470x: Lower hardware freq seek signal treshold
>> radio-si470x: Always use interrupt to wait for tune/seek completion
>> radio-si470x: Lower firmware version requirements
>>
>> And from that I can see it loads new driver as it does not warn about
>> software version - only firmware.
>
> Right, so what I want to do is to lower the firmware requirement to 12,
> so that it won't complain
> for your device since that seems to be working fine. Does that sound
> like a good idea to you?

Yes, indeed lower it to the 12 as it works to get rid of those warnings. 
It still cracks but rarely, once per 2 mins or so when using arecord + 
aplay.


The whole journey of playing that device was idea to learn V4L2 radio 
API as I was planning to add SDR functionality. Anyhow, I am a little 
bit disappointed because that radio uses snd-usb-audio module for audio. 
Do you know any cheap usb radio which uses vendor specific USB 
interface, not standard profiles?


regards
Antti


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