UIO driver test

[Gadre Nayan]

Sorry I am completely out of sort here,

should I register it on a PCI bus without any ID table?
On 15 Apr 2016 7:43 p.m., "Gadre Nayan" <gadrenayan at gmail.com> wrote:

> Oh offcourse, I forgot.
>
> So then should a char driver interface suffice.
> On 15 Apr 2016 7:29 p.m., "Greg KH" <greg at kroah.com> wrote:
>
>> On Fri, Apr 15, 2016 at 01:59:12PM +0530, Gadre Nayan wrote:
>> > Dear all,
>> >
>> > I am trying to test a dummy UIO driver to get timer interrupt events
>> > in Userspace.
>> >
>> > I register the UIO driver as a platform driver:
>> >
>> > static struct platform_device *uio_dummy_device;
>> >
>> > static struct device_driver uio_dummy_driver = {
>> >         .name           = "uio_dummy",
>> >         .bus            = &platform_bus_type,
>> >         .probe          = uio_dummy_probe,
>> >         .remove         = uio_dummy_remove,
>> >         .shutdown       = uio_dummy_shutdown,
>> > };
>> >
>> > /*
>> >  * Main initialization/remove routines
>> >  */
>> > static int __init uio_dummy_init(void)
>> > {
>> >         printk("uio_dummy_init( )\n" );
>> >         uio_dummy_device = platform_device_register_simple("uio_dummy",
>> -1,
>> >                                                            NULL, 0);
>>
>> Why are you using a platform driver and device on x86?  That's not going
>> to work at all, as your device doesn't have an irq.  Please use this on
>> a "real" device that has an interrupt assigned to it.
>>
>> hope this helps,
>>
>> greg k-h
>>
>
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