Hello, we're currently trying to get the new bytcr_rt5651 driver to run on a TrekStor SurfTab wintron 7.0 (x86 tablet). Unlike the previous driver for the rt5640 chipset, the new bytcr_rt5651 driver actually detects the card out-of-the-box. This is the dmesg output on the device: bytcr_rt5651: snd-soc-dummy-dai <-> media-cpu-dai mapping ok bytcr_rt5651: snd-soc-dummy-dai <-> deepbuffer-cpu-dai mapping ok bytcr_rt5651: Invalid direction for compress P 0, C 0 bytcr_rt5651: ASoC: can't create compress Compress bytcr_rt5651: ASoC: failed to instantiate card -22 bytcr_rt5651: devm_snd_soc_register_card failed -22 bytcr_rt5651: probe of bytcr_rt5651 failed with error -22 So -- apparently it is successfully initializing 2 of the DAIs, but it can't find the Compress-DAI. My first guess would just be to try and disable the Compress DAI in the code just for debugging, but I'm sure that there's a better way. I'm running a bleeding edge kernel build from the main linux git tree, build from yesterday's github.com/torvalds/linux.git repo. Does anyone have any ideas on how to get alsa to detect the card properly? Here's the complete dmesg output: https://gist.github.com/Manawyrm/70d90e95e9c578a7fb26 Attached is a (binary) dump of the ACPI tables of the device. Best regards, Tobias Schramm and Tobias Mädel -- This email was encrypted with 2ROT-13. Tobias Mädel t.maedel@xxxxxxxxx PGP: 3A69 E9AF 3FA9 3BCF FE50 9694 494E 2F56 C304 60E1 http://tbspace.de
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