> > It's not duplication, it's increment/decrement of a counter.
> >
> > Look for functions with 'get' and 'put' in their names.
>
> AFAICT counter is f_count in struct file, updated by fget and fput.
Yes, this is the counter I was speaking about. But to me the only way to
increment/decrement
On Tue, 05 Jun 2018 13:51:54 -0700, Abu Rasheda said:
> right now, I am in a mood to write a driver, not testing :)
Can you, in a few sentences, explain why the Linux community wants a driver
written by somebody who wanted to write a driver but didn't want to do the
testing needed to ensure it
On Tue, Jun 5, 2018 at 1:51 AM, Ozgur Kara wrote:
>
>
> 05.06.2018, 08:57, "valdis.kletni...@vt.edu" :
> > On Mon, 04 Jun 2018 15:49:37 -0700, Abu Rasheda said:
> >
> >> Any recommendations what device driver is missing and open source
> >> community could benefit from a new driver or enhance
On Tue, 05 Jun 2018 10:20:16 -0400, Hugo Lefeuvre said:
> Thanks. I think I'll have to read the source code to fully understand
> what happens. Do you know what piece of code handles this reference
> duplication ?
It's not duplication, it's increment/decrement of a counter.
Look for functions
> > Do you mean that the ioctl/read/write call increments the reference
> > count in this case ? It would mean that these syscalls aren't really
> > using passed FD but instead create duplicates to make sure the open
> > file description won't be freed during their execution, right ?
>
> One file
05.06.2018, 08:57, "valdis.kletni...@vt.edu" :
> On Mon, 04 Jun 2018 15:49:37 -0700, Abu Rasheda said:
>
>> Any recommendations what device driver is missing and open source
>> community could benefit from a new driver or enhance some existing driver?
>
> Short answer: One that you have the
