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Date:   Wed, 5 Sep 2018 16:39:33 +0200
From:   Johan Hovold <>
To:     "Ji-Ze Hong (Peter Hong)" <>
        Oliver Neukum <>
Subject: Re: [PATCH V2 1/4] USB: serial: f81232: clear overrun flag

On Thu, Aug 30, 2018 at 09:47:10AM +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 OE.
> Cc: Oliver Neukum <>
> Signed-off-by: Ji-Ze Hong (Peter Hong) <>
> ---
> v2:
>         1: Add flush_work(&port_priv->lsr_work) in f81232_close().
>            Thanks for notice by Oliver Neukum

Looks like you ignored Oliver's comment that you needed to take care of
any pending lsr work both and close and suspend.


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