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Always send 4 bytes feedback despite 10.14 format (Apple wtf ?!)

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HiFiPhile 2024-05-11 12:32:47 +02:00
parent f4d4f2da29
commit 9ce44db56f
1 changed files with 14 additions and 1 deletions
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15
src/class/audio/audio_device.c
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@ -1231,7 +1231,20 @@ static inline bool audiod_fb_send(audiod_function_t *audio)
audio->feedback.send_buf = audio->feedback.value; audio->feedback.send_buf = audio->feedback.value;
} }
return usbd_edpt_xfer(audio->rhport, audio->ep_fb, (uint8_t *) &audio->feedback.send_buf, apply_correction ? 3 : 4); // About feedback format on FS
//
// 3 variables: Format | packetSize | sendSize | Working OS:
// 16.16 4 4 Linux, Windows
// 16.16 4 3 Linux
// 16.16 3 4 Linux
// 16.16 3 3 Linux
// 10.14 4 4 Linux
// 10.14 4 3 Linux
// 10.14 3 4 Linux, OSX
// 10.14 3 3 Linux
//
// OSX requires wMaxPacketSize=3 while sending 4 bytes (Wth ?!), so we still send 4 bytes even of correction is applied
return usbd_edpt_xfer(audio->rhport, audio->ep_fb, (uint8_t *) &audio->feedback.send_buf, 4);
} }
#endif #endif