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Message-ID: <CAOMZO5Ds6NKsTCptQXDGZDJasb119hYWqXMzX8nG5WFArysL7A@mail.gmail.com> Date: Fri, 24 Aug 2012 12:14:00 -0300 From: Fabio Estevam <festevam@...il.com> To: "Bastelli Carlo (yahoo)" <carlo_bastelli@...oo.it> Cc: "linux-arm-kernel@...ts.infradead.org" <linux-arm-kernel@...ts.infradead.org>, "linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>, Marek VaĊĦut <marex@...x.de> Subject: Re: SLAVE Side SPI kernel driver development On Fri, Aug 24, 2012 at 11:57 AM, Bastelli Carlo (yahoo) <carlo_bastelli@...oo.it> wrote: > Hello, I'm Carlo, I have a difficult task at work, my boss asked me to > develop > a driver SPI slave side on embedded ARM processor running Linux. > Precisely linux occur on the SPI bus as a slave, not master as required > by the hierarchical structure of the current kernel. The new driver > will > receive via interrupt and respond when selected by its chip select. Can > anyone suggest the best way to develop this driver?. Personally, I > have identified two main roads, the first if possible to exploit the > structure SPI master driver, with a few tricks that now I can not > define. The second most radical, write a driver for a UART like, but > managing the SPI device. > Thank you for any suggestions or examples. Marek got spi slave running on a mx28. See his patch: http://www.spinics.net/lists/arm-kernel/msg190860.html Regards, Fabio Estevam -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@...r.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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