[lkml]   [2012]   [May]   [10]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
Messages in this thread
SubjectRE: [PATCH v2] staging: comedi: refactor sysfs files in comedi_fops.c
On Wednesday, May 09, 2012 1:39 PM, Greg KH wrote:
> On Wed, May 09, 2012 at 09:20:08AM -0700, H Hartley Sweeten wrote:
>> Refactor the sysfs attributes and functions to remove
>> the need for the forward declarations and use the
>> DEVICE_ATTR macro to define them.
>> Instead of individually creating sysfs device attribute
>> files, wrap them in an attribute_group and use the
>> sysfs_create_group function to create them.
> This is great, and needed to be done, but you need to take this one step
> further. This attribute group needs to be registered by the driver
> core, not the comedi core, so userspace doesn't get an add event before
> the files are created. To do that, assign this attribute group to the
> class and the core will handle it for you.
> I've taken this patch, but will you make a follow-on patch that makes
> this change, which will remove this race? It should be a net removal of
> code in the comedi core overall.
I think I worked this out. Compile testing it now and will post the patch


To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to
More majordomo info at
Please read the FAQ at

 \ /
  Last update: 2012-05-11 00:41    [from the cache]
©2003-2014 Jasper Spaans. hosted at Digital Ocean