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Date:   Wed, 03 Apr 2019 12:36:31 +0200
From:   Oliver Neukum <>
To:     "Ji-Ze Hong (Peter Hong)" <>,,,
Cc:     "Ji-Ze Hong (Peter Hong)" <>,,
Subject: Re: [PATCH V6 1/3] USB: serial: f81232: clear overrun flag

On Mi, 2019-04-03 at 16:40 +0800,  Ji-Ze Hong (Peter Hong)  wrote:
> The F81232 will report data and LSR with bulk like following format:
> bulk-in data: [LSR(1Byte)+DATA(1Byte)][LSR(1Byte)+DATA(1Byte)]...
> LSR will auto clear frame/parity/break error flag when reading by H/W,
> but overrrun will only cleared when reading LSR. So this patch add a
> worker to read LSR when overrun and flush the worker on close() &
> suspend().
> Cc: Oliver Neukum <>
> Signed-off-by: Ji-Ze Hong (Peter Hong) <>
Reviewed-by: Oliver Neukum <>

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