This commit adds new DEVICE_FLG with QUIRK_FLAG_DSD_RAW and Vendor Id for HEM devices which supports native DSD. Prior to this change Linux kernel was not enabling native DSD playback for HEM devices, and as a result, DSD audio was being converted to PCM "on the fly". HEM devices, when connected to the system, would only play audio in PCM format, even if the source material was in DSD format. With the addition of new VENDOR_FLG in the quircks.c file, the devices are now correctly recognized, and raw DSD data is transmitted to the device, allowing for native DSD playback.
Unified · Split
| @@ -2191,6 +2191,8 @@ static const struct usb_audio_quirk_flags_table quirk_flags_table[] = { · 2190 unmodified lines | ||
| 2191 | 2191 | QUIRK_FLAG_DSD_RAW), |
| 2192 | 2192 | VENDOR_FLG(0x2ab6, /* T+A devices */ |
| 2193 | 2193 | QUIRK_FLAG_DSD_RAW), |
| 2194 | + VENDOR_FLG(0x3336, /* HEM devices */ | |
| 2195 | + QUIRK_FLAG_DSD_RAW), | |
| 2194 | 2196 | VENDOR_FLG(0x3353, /* Khadas devices */ |
| 2195 | 2197 | QUIRK_FLAG_DSD_RAW), |
| 2196 | 2198 | VENDOR_FLG(0x3842, /* EVGA */ |