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    SubjectRe: [PATCH 2.6-git 0/4] SPI core refresh
    On Mon, 2005-12-12 at 18:20 +0300, Vitaly Wool wrote:
    > Greetings,


    > this message fill be followed by the following four ones:
    > 1) updated SPI core from Dmitry Pervushin/Vitaly Wool
    > 2) Atmel MTD dataflash driver port for this core
    > 3) SPI controller driver for Philips SPI controller
    > 4) dumb EEPROM driver for EEPROM chip on SPI bus
    > This SPI core features:
    > * multiple SPI controller support
    > * multiple devices on the same bus support
    > * DMA support
    > * synchronous and asynchronous transfers
    > * library for asynchronous transfers on the bus using kernel threads
    > * character device interface
    > * custom lightweight SPI message allocation mechanism


    One problem I still have with this implementation (well, if I remember
    correctly David's has the same problem) is that it's not possible to
    read/write from/to the SPI bus in interrupt context.

    How do you handle IRQ's generated by a SPI device (e.g ack the
    interrupt, check if it was the SPI device that generated the
    interrupt, ...) if you can't read/write on the SPI bus from interrupt


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      Last update: 2005-12-12 19:06    [W:0.033 / U:0.740 seconds]
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