linux-kernel - Re: How usable is spi-mxs driver?

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Date:	Mon, 22 Apr 2013 16:35:58 +0200
From:	Marek Vasut <marex@...x.de>
To:	Hector Palacios <hector.palacios@...i.com>
Cc:	"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
	"fabio.estevam@...escale.com" <fabio.estevam@...escale.com>
Subject: Re: How usable is spi-mxs driver?

Dear Hector Palacios,

> Hello,
> 
> I had the feeling that the MXS SPI driver was rather useless due to the SPI
> being only half-duplex on i.MX28, but it looks like people's using it so I
> was wondering what kind of SPI devices can be driven with it, or if there
> is any trick that allows bi-directional communication.

It can't do full duplex. I tested it with master-slave communication (half-
duplex) and various SPI flashes.

Best regards,
Marek Vasut
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