[PATCH] usb: add Freescale QE/CPM USB peripheral controllerdriver

Li Yang-R58472 LeoLi at freescale.com
Tue Sep 2 18:12:17 EST 2008


> -----Original Message-----
> From: Joakim Tjernlund [mailto:joakim.tjernlund at transmode.se] 
> Sent: Tuesday, September 02, 2008 3:57 PM
> To: Li Yang-R58472
> Cc: avorontsov at ru.mvista.com; greg at kroah.com; 
> linux-usb at vger.kernel.org; linux-kernel at vger.kernel.org; 
> dbrownell at users.sourceforge.net; linuxppc-dev at ozlabs.org
> Subject: Re: [PATCH] usb: add Freescale QE/CPM USB peripheral 
> controllerdriver
> 
> On Tue, 2008-09-02 at 15:35 +0800, Li Yang wrote:
> > On Tue, Sep 2, 2008 at 1:11 AM, Anton Vorontsov 
> > <avorontsov at ru.mvista.com> wrote:
> > > On Thu, Aug 28, 2008 at 05:43:33PM +0800, Li Yang wrote:
> > >> Some of Freescale SoC chips have a QE or CPM co-processor which 
> > >> supports full speed USB.  The driver adds device mode support of 
> > >> both QE and CPM USB controller to Linux USB gadget.  The 
> driver is 
> > >> tested with MPC8360 and MPC8272, and should work with 
> other models 
> > >> having QE/CPM given minor tweaks.
> > >>
> > >> Signed-off-by: Xie Xiaobo <X.Xie at freescale.com>
> > >> Signed-off-by: Li Yang <leoli at freescale.com>
> > >> ---
> > >> This is the second submission of the driver.  This 
> version addressed:
> > >> Comments from Anton Vorontsov.
> > >> A lot of cosmetic problem.
> > >> Sparse and various kernel DEBUG warnings.
> > >
> > > Just caught this:
> > >
> > > g_ether gadget: high speed config #1: CDC Ethernet (ECM)
> 
> Does RNDIS work too? If not, is it possible to add or doesn't 
> the HW support it?

RNDIS is a gadget(protocol) level thing.  I believe it can work with
this driver although not tested myself.

Noted:  AFAIK, RNDIS gadget in Linux doesn't interoperate with windows
well enough to be production level.  Use at your own risk.

- Leo



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