Re: Fwd: [linux-usb-devel] USB IR receivers and evdev

[<li...@ba...>]

Hi!

Jon Smirl "jon...@gm..." wrote:
[...]
>> One reason I would like to keep the drivers as kernel modules is that you
>> can use tools like mode2 or xmode2 to easily test them.

> These should be able to work with a user space library that provides
> the right API.

And you are volunteering to implement that? ;-)

> I was already to try and merge these drivers into the kernel, but now
> I am having second thoughts about doing a user space implementation
> instead.

Ok.

[...]
>> I don't know about GPIO, but for the I2C driver a userspace driver also is
>> available, but I did not have time to integrate it into the code base yet.


> All of the parallel, serial, gpio, i2c type devices probably have to
> go into the kernel because they need to do accurate timings. Once you
> are in user space it becomes difficult to time things.
>
> For example the user space implementation for i2c (I2C_CHARDEV) still
> bit twiddles in the kernel and then only presents you with the
> results.

Yes, but the all LIRC related parts can be in user space in case of the  
I2C driver.

Christoph