On 4/16/21 3:47 AM, Jaroslav Kysela wrote:
Dne 16. 04. 21 v 10:12 Takashi Iwai napsal(a):
Lenovo Ideapad S740 requires quite a few COEF setups to make its
speakers working. The verb table was provided from Ryan Prescott as
the result of investigation via qemu:
https://github.com/ryanprescott/realtek-verb-tools/wiki/How-to-sniff-verbs-from-a-Windows-sound-driver
[Cc: to Kailang / Realtek]
I believe that this sequence contains I2C writes to amplifier chips. It would
be really helpful, if Realtek can provide more information for the I2C master
interface for their codecs (describe basic I2C I/O).
The biggest problem is to figure what address/value pairs to write with
I2C into the amplifiers, and here the catch is that those I2C/I2S
amplifiers may or may not be sourced from Realtek, and it'd be difficult
for Realtek to provide documentation on their competition, wouldn't it?
