Hi Kavita
I understood the part of request_threaded_irq() found a sample
implementation here->
http://lxr.free-electrons.com/source/drivers/input/touchscreen/cy8ctmg110_ts.c
for touch controllers.
But did not understand the bit about
"In userspace use evetest like application to wait on the event or simple
select on /dev/input should work"
Can you elaborate what you meant by that ? Thanks.
On Tuesday, September 9, 2014 11:22:58 AM UTC+5:30, kavitha wrote:
>
> May be you can use udev In the
> err = request_threaded_irq(pdata->irq, NULL, receive_thread,
> pdata->irqflags, "interrupt", ir);
>
>
>
> In reciever thread
> static irqreturn_t receive_threar(int irq, void *context_data)
> {
> struct data *dh = context_data;
>
> input_report_key(dh->input_dev, key, 1);
>
> input_sync(dh>input_dev)
>
> }
>
>
>
> In userspace use evetest like application to wait on the event or simple
> select on /dev/input should work
>
>
>
> On Tue, Sep 9, 2014 at 8:10 AM, neo star <[email protected] <javascript:>
> > wrote:
>
>> Hi
>>
>> I too have the same question, have you found any answer ? thanks
>>
>>
>> On Thursday, August 28, 2014 3:14:12 PM UTC+5:30, [email protected] wrote:
>>>
>>> I have read online that we can't handle interrupts from user
>>> space. Instead -
>>> 1) We can write a kernel thread and have that thread wait on an event.
>>> 2) Once the interrupt occurs, send one asynchronous event from the
>>> kernel module/driver to user space where we will have one signal handler
>>> with FASYNC to tackle this
>>>
>>> I have written a kernel module that registers interrupts on the rising
>>> edge on a GPIO pin and want to relay this message to user space. How do I
>>> go about implementing the above?
>>>
>>> Thanks!
>>>
>> --
>> For more options, visit http://beagleboard.org/discuss
>> ---
>> You received this message because you are subscribed to the Google Groups
>> "BeagleBoard" group.
>> To unsubscribe from this group and stop receiving emails from it, send an
>> email to [email protected] <javascript:>.
>> For more options, visit https://groups.google.com/d/optout.
>>
>
>
On Tuesday, September 9, 2014 11:22:58 AM UTC+5:30, kavitha wrote:
>
> May be you can use udev In the
> err = request_threaded_irq(pdata->irq, NULL, receive_thread,
> pdata->irqflags, "interrupt", ir);
>
>
>
> In reciever thread
> static irqreturn_t receive_threar(int irq, void *context_data)
> {
> struct data *dh = context_data;
>
> input_report_key(dh->input_dev, key, 1);
>
> input_sync(dh>input_dev)
>
> }
>
>
>
> In userspace use evetest like application to wait on the event or simple
> select on /dev/input should work
>
>
>
> On Tue, Sep 9, 2014 at 8:10 AM, neo star <[email protected] <javascript:>
> > wrote:
>
>> Hi
>>
>> I too have the same question, have you found any answer ? thanks
>>
>>
>> On Thursday, August 28, 2014 3:14:12 PM UTC+5:30, [email protected] wrote:
>>>
>>> I have read online that we can't handle interrupts from user
>>> space. Instead -
>>> 1) We can write a kernel thread and have that thread wait on an event.
>>> 2) Once the interrupt occurs, send one asynchronous event from the
>>> kernel module/driver to user space where we will have one signal handler
>>> with FASYNC to tackle this
>>>
>>> I have written a kernel module that registers interrupts on the rising
>>> edge on a GPIO pin and want to relay this message to user space. How do I
>>> go about implementing the above?
>>>
>>> Thanks!
>>>
>> --
>> For more options, visit http://beagleboard.org/discuss
>> ---
>> You received this message because you are subscribed to the Google Groups
>> "BeagleBoard" group.
>> To unsubscribe from this group and stop receiving emails from it, send an
>> email to [email protected] <javascript:>.
>> For more options, visit https://groups.google.com/d/optout.
>>
>
>
--
For more options, visit http://beagleboard.org/discuss
---
You received this message because you are subscribed to the Google Groups
"BeagleBoard" group.
To unsubscribe from this group and stop receiving emails from it, send an email
to [email protected].
For more options, visit https://groups.google.com/d/optout.
