lkml.org 
[lkml]   [2013]   [Sep]   [3]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
/
Date
From
SubjectRe: RESEND: Generating interrupts from a USB device driver? (USB to SPI/GPIO bridge)
On 09/02/2013 06:07 PM, Greg KH wrote:
> On Mon, Sep 02, 2013 at 05:46:58PM -0500, Daniel Santos wrote:
>> Hello guys. I didn't get a response the last time so hopefully with
>> 3.11 out I'll get one this time.
>>
>> I need to be able to generate interrupts from a USB device driver while
>> servicing the complete() function of an interrupt URB.
> No you don't :)

Hmm, am I wrong that if I want my gpios to be poll()-able from userspace
(via /sys/class/gpio/gpio<num>/value), that I must generate an IRQ and
populate my .to_irq function of gpio_chip? Or is it cleaner to find the
dirent and directly call sysfs_notify_dirent() to facilitate this
behavior to userspace?

Of course, this will wont enable drivers that want an irq in the kernel,
but aside from this ADNS-9800, I don't need that functionality.

Thanks,
Daniel


\
 
 \ /
  Last update: 2013-09-03 22:21    [W:0.058 / U:0.480 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site