Hello,
On Wednesday, July 01, 2009 3:39 AM, David Brownell wrote:
> > --- a/drivers/spi/spi_bitbang.c
> > +++ b/drivers/spi/spi_bitbang.c
> > @@ -392,6 +392,22 @@ int spi_bitbang_transfer(struct spi_device *spi,
> > struct spi_message *m)
> > unsigned long flags;
> > int status = 0;
> >
> > + if (spi->master->flags & SPI_MASTER_NO_RX) {
> > + struct spi_transfer *xfer;
> > + list_for_each_entry(xfer, &m->transfers, transfer_list) {
> > + if (xfer->rx_buf)
> > + return -EINVAL;
> > + }
> > + }
>
> Actually these two loops should merge, and likely move with
> spi_async() into the spi.c core code ... I'll split this
> support into a separate patch.
Ok.
I created two separate loops because I thought that it will be faster,
especially when the check must be done for each transfer
message request.
Best regards
--
Marek Szyprowski
Samsung Poland R&D Center
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