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Re: [Qemu-devel] [PATCH] Realview/Versatile: Export LED state
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From: |
Andreas Färber |
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Subject: |
Re: [Qemu-devel] [PATCH] Realview/Versatile: Export LED state |
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Date: |
Fri, 11 Jan 2013 16:23:19 +0100 |
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User-agent: |
Mozilla/5.0 (X11; Linux x86_64; rv:17.0) Gecko/17.0 Thunderbird/17.0 |
Am 11.01.2013 16:00, schrieb Peter Maydell:
> On 11 January 2013 13:42, Wolfgang Mauerer <address@hidden> wrote:
>> The configuration register for the onboard LEDs is
>> emulated, but the state is not exported, which makes
>> the feature not particularly useful. Create a character
>> device to make status changes accessible to the host.
>>
>> For example, use the command line argument
>>
>> -chardev socket,id=leds,host=localhost,port=12345,server,nowait
>>
>> to observe status changes via a socket.
>
> This isn't the only board we emulate which has LEDs. I'd
> rather see this problem tackled with a general plan for "this
> is how we handle LEDs in QEMU boards" rather than a
> versatile board specific patch.
Hm, mips_malta.c does use a CharDriverState... just a more "structured"
one using ASCII art.
Andreas
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