Re: [PATCH 0/3] HID: make raw output callback more flexible

From: Bastien Nocera
Date: Sat Jan 30 2010 - 09:11:25 EST

On Fri, 2010-01-29 at 19:46 -0500, Michael Poole wrote:
> > [1]: Comments on the patch at
> > would be
> > appreciated
> This patch does not work for me. Before, the first time after each
> boot
> that I tried to connect to an Apple Magic Mouse, it failed with -14
> (EFAULT). With this patch, it fails with -22 (EINVAL) instead. The
> -EFAULT *was* due to hidp_parse()'s copy_from_user(). I have not
> looked
> yet to see where the -EINVAL is coming from -- would that help? (Both
> with and without your patch, the second attempt to connect works.)

I don't get -EFAULT anymore (it was failing to copy the rd_data from
user-space), but I do get -EINVALs now. I haven't investigated it
though. My guess is that the hid parser fails.

Could you compare the sizes of the data gathered in user-space?

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