Wanted to bump this up on the forum again.
Copy paste from:
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Just wanted to create a new topic since the other one was already marked with a solution.
Also wanting support for the smsl su-6 dac. This and other newer smsl devices come with a new remote with a separate volume control instead of the arrow keys. I'm not sure if that was the only codes that changed but I at
Do the existing SMSL codes (see below image) not work with your DAC? Generally manufactures will reuse the same codes for their products.
I found a couple sets of codes for SMSL at:
https://gist.github.com/elupus/19ab3405168977a7bc3640402258302a
https://www.reddit.com/r/BudgetAudiophile/comments/al1nqp/smsl_q5_pro_ir_codes/
https://github.com/UberGuidoZ/Flipper-IRDB/blob/main/Audio_Receivers/SMSL/SMSL_RC-8C.ir
I have no idea any or which will work with your DAC,