diff options
| author | Valentin Milea <[email protected]> | 2021-12-06 18:49:58 +0200 |
|---|---|---|
| committer | Valentin Milea <[email protected]> | 2021-12-06 18:49:58 +0200 |
| commit | ef879e8a8a43dfa34160f50d7f432c3140dec7fa (patch) | |
| tree | f266bcf610e71d9fdd2c97f30d3fc3e258ecb963 /src/class/audio/audio_device.h | |
| parent | 3e9bb3bee1e835a0d99c3f503c63cf0481b45ce2 (diff) | |
Support disabling feedback format correction #1234
Diffstat (limited to 'src/class/audio/audio_device.h')
| -rw-r--r-- | src/class/audio/audio_device.h | 10 |
1 files changed, 10 insertions, 0 deletions
diff --git a/src/class/audio/audio_device.h b/src/class/audio/audio_device.h index 5a469523c..731fd6c01 100644 --- a/src/class/audio/audio_device.h +++ b/src/class/audio/audio_device.h @@ -186,6 +186,11 @@ #define CFG_TUD_AUDIO_ENABLE_FEEDBACK_EP 0 // Feedback - 0 or 1 #endif +// Disable/enable conversion from 16.16 to 10.14 format on high-speed devices. See tud_audio_n_fb_set(). +#ifndef CFG_TUD_AUDIO_DISABLE_FEEDBACK_FORMAT_CORRECTION +#define CFG_TUD_AUDIO_DISABLE_FEEDBACK_FORMAT_CORRECTION 0 // 0 or 1 +#endif + // Audio interrupt control EP size - disabled if 0 #ifndef CFG_TUD_AUDIO_INT_CTR_EPSIZE_IN #define CFG_TUD_AUDIO_INT_CTR_EPSIZE_IN 0 // Audio interrupt control - if required - 6 Bytes according to UAC 2 specification (p. 74) @@ -458,6 +463,11 @@ TU_ATTR_WEAK bool tud_audio_fb_done_cb(uint8_t rhport); // Value will be corrected for FS to 10.14 format automatically. // (see Universal Serial Bus Specification Revision 2.0 5.12.4.2). // Feedback value will be sent at FB endpoint interval till it's changed. +// +// Note that the USB Audio 2.0 driver on Windows 10 is not following the spec and expects 16.16 +// format for FS. You can define CFG_TUD_AUDIO_DISABLE_FEEDBACK_FORMAT_CORRECTION=1 as a workaround +// to transmit the feedback value unchanged. Be aware that this might break feedback on other hosts, +// though at least on Linux the ALSA driver will happily accept either format. bool tud_audio_n_fb_set(uint8_t func_id, uint32_t feedback); static inline bool tud_audio_fb_set(uint32_t feedback); #endif |