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SubjectRe: [PATCH 2/4] HID: cp2112: remove the last hid_output_raw_report() call
From
On Wed, Mar 5, 2014 at 1:11 PM, David Barksdale <dbarksdale@uplogix.com> wrote:
> Sorry for the delay, hid_hw_output_report() is the correct function.

No worries and thanks for the tests.

This saves me some time!

Sending the v2 right away.

Cheers,
Benjamin

>
>
> On March 4, 2014 8:18:38 AM CST, Benjamin Tissoires
> <benjamin.tissoires@redhat.com> wrote:
>>
>> On Mar 04 2014 or thereabouts, Jiri Kosina wrote:
>>>
>>> On Fri, 28 Feb 2014, Benjamin Tissoires wrote:
>>>
>>>>
>>>> I don't have access to the device, so I copied/pasted the code
>>>> from hidraw.
>>>>
>>>> Signed-off-by: Benjamin Tissoires <benjamin.tissoires@redhat.com>
>>>> ---
>>>> drivers/hid/hid-cp2112.c | 16 +++++++++++++++-
>>>> 1 file changed, 15 insertions(+), 1 deletion(-)
>>>>
>>>> diff --git a/drivers/hid/hid-cp2112.c b/drivers/hid/hid-cp2112.c
>>>> index 860db694..c4f87bd 100644
>>>> --- a/drivers/hid/hid-cp2112.c
>>>> +++ b/drivers/hid/hid-cp2112.c
>>>> @@ -290,7 +290,21 @@ static int cp2112_hid_output(struct hid_device
>>>> *hdev, u8 *data, size_t count,
>>>> if (!buf)
>>>> return -ENOMEM;
>>>>
>>>> - ret = hdev->hid_output_raw_report(hdev, buf, count, report_type);
>>>> + /* Fixme: test which function is actually called for output reports
>>>> */
>>>
>>>
>>> I don't completely understand this Fixme (oh, and please spell it as
>>> 'FIXME:' so that we are consistent with all the other instances), could
>>> you please elaborate?
>>
>>
>> Well, sorry:
>> As I said, this part is a copy/paste of what is in hidraw. However, this
>> just reflect that we don't know how the device actually behave, which is
>> not very elegant. I have currently no clues of which function will be
>> actually called for output reports: hid_hw_output_report() or
>> hid_hw_raw_request(). Once we got the confirmation of which function is
>> called, we could make the path more straightforward.
>>
>> I bought one of these (it may help debugging some Synaptics devices),
>> and I'll receive it by the end of the week. So by next week, we should
>> get the actual code path and remove this FIXME.
>>
>> I need to send a v2 of hid-sony in any cases, so I guess you should not
>> pull these 4 patches right away. If you prefer having this in linux-next,
>> the sooner, I can also send the v2 right away, and we will fix this
>> cp2112 driver next week.
>>
>> Cheers,
>> Benjamin
>>
>>>
>>> Thanks,
>>>
>>> --
>>> Jiri Kosina
>>> SUSE Labs
>
>
> --
> Sent from my Android device with K-9 Mail. Please excuse my brevity.


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