How to get the firmware with function of I2S and I2C?

jongrock chun

I have a omega2 of version b187, b201.
b187 don't have the function of I2C.
b201 don't have the function of I2S.

I need the both function(I2C, I2S).
Do you know(have) firmware that have the I2C and I2S.
please, let me know If anyone have the firmware of the above features.

thanks.

jongrock chun

addition question,
Anyone record with omega2 using alsa util(arecord)?
Dit it work?

in my case, aplay command have worked.(do not output the sound.)
but, arecord command have not worked and it occurred an error.(and did to reboot)
let me know the this situation.

Mark Nagaev

https://docs.onion.io/omega2-docs/cross-compiling.html
Download a build system, configure it, build your own firmware. This functions will work on openwrt branch-kernel 4.14.

György Farkas

@jongrock-chun I2C works on v0.2.0 b187 (so b187 has the function of I2C).
Only the i2cdetect command - which is a separate utility - didn't work up to the firmware v0.2.2 b194.

jongrock chun

thanks for your reply.
when I executed the i2cdetect command with b187 version, it output the below picture.

but, the omega with b201 version was running correctly(address 0x08 was printed).

so I have 3 questions.

first, why did it print the above picture?
omega2 is wrong? or only I2C function is wrong?

2nd, where can I get the firmware b187 or b194?
onion's repo site don't have a old firmware.
I have a one omega2 with the firmware b187.
so I can't test the other omega2 with the same firmware.

3rd, anyone have did to record with I2S(using the arecord command)?

György Farkas

@jongrock-chun

I2C is supported pretty well on former Omega2 firmwares.
Only the i2cdetect command didn't work up to the firmware v0.2.2 b194.
The i2cdetect command is a part of the 'i2c-tools' package, it's a separate utility: /usr/sbin/i2cdetect.
You could live without it.
An evergreen question
Older Omega2 firmwares:
http://repo.onion.io/omega2/images/images/?prefix=omega2/images/
Newer - OpenWrt 18.06 based - Omega2 firmwares:
http://repo.onioniot.com/omega2/images/
Omega Firmware Changelog (Omega and Omega2):
https://github.com/OnionIoT/source/blob/openwrt-18.06/CHANGELOG.md