Re: [Qemu-devel] [RFC PATCH v1 1/4] SPI: initial support

[Peter Maydell]

2012/4/3 Paul Brook <address@hidden>:
>> > I'm no SPI expert, but a bit of googling suggests that it's
>> > a synchronous duplex bus, so you always send a byte of data
>> > to the slave and get one back in return (even if for some slaves
>> > it might be random garbage).
>
> Waitaminute. So this is just basic synchronous serial?
>
> We already have an API for this. hw/spi.c.

Er, no we don't, not in upstream QEMU. You'll notice that
the patch we're discussing creates hw/spi.c as a new file...

-- PMM