Sorry for late reply.
Yes, when I specify appropriate deviceType in serial-channel-instance, the driver code will not check chip and just enable it.
So I explictly set deviceType for LPC2XXX's UART0, and intialize UART1 and other channels(of SC16C550) as before, then all channels works well with FIFO enabled.


> From: laurie.gellatly@netic.com
> To: ecos-discuss@sources.redhat.com
> Date: Sun, 27 Jan 2008 07:40:53 +1100
> Subject: RE: [ECOS] Re: Half Duplex RS485
>
> Hi Wang,
> I've been looking through the patch you sent.
> I don't see any change to the FIFO handling unless you mean where
> it figures out the deviceType?
>
> ...Laurie:{)
>
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