[PATCH] Add support for USB Keyboard attached to UHCI

[jidong xiao]

On Nov 21, 2007 8:01 PM, Konstantin Baydarov <kbaidarov at ru.mvista.com> wrote:
>
> On Wed, 7 Nov 2007 17:11:37 +0300
> Konstantin Baydarov <kbaidarov at ru.mvista.com> wrote:
>
> > On Mon, 5 Nov 2007 10:54:42 -0800 (PST)
> > Aaron Young <ayoung at cthulhu.engr.sgi.com> wrote:
> >
> > >
> > >   Would it be possible for you to wait for my new kdb/usb
> > > infastructure code and re-implement your UHCI code against it at
> > > that time? I could attempt to take an in depth look at it at that
> > > time perhaps...
> > >
> > >   Thanks,
> > >
> > >   -Aaron
> >
> >   Yes I'll intergrate UCHI code to the new KDB.
> > ---------------------------
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>
>  UCHI support integrated to kdb-v4.4-2.6.24-rc2. Tested on i386 UP PC.
>

> @@ -135,6 +261,9 @@ get_usb_char(void)
>         int     ret;
>         unsigned char keycode, spec;
>         extern u_short plain_map[], shift_map[], ctrl_map[];
> +       int     poll_ret, i2, j, max;
> +
> +       ret = -1;
>
>         /*
>          * Loop through all the USB keyboard(s) and return
> @@ -148,20 +277,27 @@ get_usb_char(void)
>                         continue;
>
>                 /* Transfer char */
> -                ret = (*kdb_usb_kbds[i].poll_func)(kdb_usb_kbds[i].urb);
> -                if (ret == -1) /* error or no characters, try the next kbd */
> +                poll_ret = (*kdb_usb_kbds[i].poll_func)(kdb_usb_kbds[i].urb);
> +                if (poll_ret == -1) /* error or no characters, try the next kbd */
>                         continue;
>

It seems once get_usb_char() is called,the poll_func i.e.
uhci_kdb_poll_char might be invoked, but I am wondering who calls
get_usb_char()?I didn't find any place where get_usb_call() is
invoked.

Regards
Jason
---------------------------
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