> > In my drawer, I have a patchset that aims to remove all usbhid
> > dependence, from all the drivers. Perhaps the attached patch is
> > something to consider here?
>
> yep, removing usbhid dependencies is a good thing.
> See my review below :)
>
> > From 5d9a791e0a9e41bcea0fcb286e2849b403675f37 Mon Sep 17 00:00:00 2001
> > From: Henrik Rydberg <rydberg@xxxxxxxxxxx>
> > Date: Mon, 2 Jul 2012 20:38:21 +0200
> > Subject: [PATCH 3/7] hid: extend interface with report requests
> >
> > ---
> > drivers/hid/usbhid/hid-core.c | 14 ++++++++++++++
> > include/linux/hid.h | 33 +++++++++++++++++++++++++++++++++
> > 2 files changed, 47 insertions(+)
> >
> > diff --git a/drivers/hid/usbhid/hid-core.c b/drivers/hid/usbhid/hid-core.c
> > index de1f9ac..3c618da 100644
> > --- a/drivers/hid/usbhid/hid-core.c
> > +++ b/drivers/hid/usbhid/hid-core.c
> > @@ -1251,6 +1251,18 @@ static int usbhid_power(struct hid_device *hid, int lvl)
> > return r;
> > }
> >
> > +static void usbhid_send(struct hid_device *hid, struct hid_report *rep, int req)
> > +{
> > + switch (req) {
> > + case HID_REQ_GET_REPORT:
> > + usbhid_submit_report(hid, rep, USB_DIR_IN);
> > + break;
> > + case HID_REQ_SET_REPORT:
> > + usbhid_submit_report(hid, rep, USB_DIR_OUT);
> > + break;
> > + }
> > +}
> > +
> > static struct hid_ll_driver usb_hid_driver = {
> > .parse = usbhid_parse,
> > .start = usbhid_start,
> > @@ -1259,6 +1271,8 @@ static struct hid_ll_driver usb_hid_driver = {
> > .close = usbhid_close,
> > .power = usbhid_power,
> > .hidinput_input_event = usb_hidinput_input_event,
> > + .send = usbhid_send,
>
> the name here is a little bit misleading. You are using "send" to also
> "get" reports...
> Maybe "hid_request" is a better name. This will allows us to add the
> missing function:
> Get_Descriptor, Set_Descriptor, Get_Report Request, Set_Report
> Request, Get_Idle, Set_Idle, Get_Protocol, Set_Protocol and maybe
> others - even WAIT for instance :)
Sounds good, I'll ponder this a bit.
>
> > + .wait = usbhid_wait_io,
>
> is it really necessary to wait for IO? (I think it will not be one
> line for hid over i2c...).
We can certainly skip it for the scope of your patchset, but last time
I checked, it was needed in quite a few places.
Thanks,
Henrik
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