> ------------------------------ > > Message: 2 > Date: Wed, 10 Feb 2010 08:36:27 +0100 > From: Maris <[email protected]> > Subject: [spi-devel-general] Proposal spi.h > To: [email protected] > Message-ID: <[email protected]> > Content-Type: text/plain; charset=utf-8; format=flowed; delsp=yes > > * extend spi_device struct element 'mode' to u16 (currently u8, fully > utilized as of 2.6.3x) > * chip_select to s16 (until now also u8)
I forgot to mention whzy signed: negative values for gpio-indices, positive as usual for SSEL lines. -Rob > > Background: > Chip select size change: allow specification of SPI-device > hardware-related spi control per device-specific (native) or gpio-based > control. > mode size change: obligatory... A mode bit could also be assigned a > selection bit: chip_select interpreted as native SSEL-index or as > gpio-index (instead of negative value for chip_select). > > Chip select differentiation bottom line: Naming of the device. I'm not > sure how to establish this. spidev0.x are normally assigned for chip > selects driven by the SPI peripheral hardware. GPIO-based: > spidev0.gpioxx? > > -Rob > > ------------------------------------------------------------------------------ SOLARIS 10 is the OS for Data Centers - provides features such as DTrace, Predictive Self Healing and Award Winning ZFS. Get Solaris 10 NOW http://p.sf.net/sfu/solaris-dev2dev _______________________________________________ spi-devel-general mailing list [email protected] https://lists.sourceforge.net/lists/listinfo/spi-devel-general
