lkml.org 
[lkml]   [2005]   [Dec]   [12]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
    /
    SubjectRe: [PATCH 2.6-git 0/4] SPI core refresh
    From
    Date
    On Mon, 2005-12-12 at 18:20 +0300, Vitaly Wool wrote:
    > Greetings,

    Hi,

    > 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

    [snipped]

    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
    context?


    Rui

    -
    To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
    the body of a message to majordomo@vger.kernel.org
    More majordomo info at http://vger.kernel.org/majordomo-info.html
    Please read the FAQ at http://www.tux.org/lkml/

    \
     
     \ /
      Last update: 2005-12-12 19:06    [W:0.021 / U:1.508 seconds]
    ©2003-2016 Jasper Spaans. hosted at Digital OceanAdvertise on this site