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Differential D48957

iichid(4): Read wMaxInputLength bytes over I2C even if we discards data
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Authored by wulf on Feb 12 2025, 7:01 AM.
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rG3bd684f0aafe: iichid(4): Read wMaxInputLength bytes over I2C even if we discards data
rG548d3aa856a9: iichid(4): Read wMaxInputLength bytes over I2C even if we discards data
Summary

For some devices e.g. ITE5570 it is not enough to read HID-over-I2C
input length header of RESET command response to acknowledge interrupt.
Do a full-size read to avoid interrupt storm.

Sponsored by: Future Crew LLC
MFC after: 2 month

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sys/
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iicbus/
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sys/dev/iicbus/iichid.c

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