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    SubjectRe: [PATCH] add new NRP power meter USB device driver
    On Thu, May 31, 2012 at 12:17:11PM +0200, Oliver Neukum wrote:
    > Am Donnerstag, 31. Mai 2012, 11:53:04 schrieb Greg KH:
    > > > So it is a chicken and egg problem. A lot of software is now out with
    > > > depends on this driver and a lot of embedded development environments
    > > > doesn't provide libudev, libsysfs und libusb. It will also increase the
    > > > size of the image and adds additional dependencies to the application.
    > >
    > > You don't need any of those libraries to do this. What's wrong with
    > > using "raw" usbfs interactions?
    >
    > SPI is not limited to USB. If we can get a unified subsystem then the
    > drivers need to be in kernel space, as some hardware does not allow
    > a solution in user space.

    Ok, now that is a valid reason for a kernel driver.

    But, I think it should use the IIO interface, as that should handle
    these types of devices.

    thanks,

    greg k-h


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