On Thu, Aug 28, 2014 at 07:43:01AM +0800, Wang YanQing wrote:
> On Mon, Aug 18, 2014 at 12:07:20PM +0200, Johan Hovold wrote:
> > On Sun, Aug 17, 2014 at 10:05:36AM +0800, Wang YanQing wrote:
> > > Hi Johan Hovold.
> > >
> > > Another two questions.
> > >
> > > On Tue, Aug 12, 2014 at 04:46:25P
On Mon, Aug 18, 2014 at 12:07:20PM +0200, Johan Hovold wrote:
> On Sun, Aug 17, 2014 at 10:05:36AM +0800, Wang YanQing wrote:
> > Hi Johan Hovold.
> >
> > Another two questions.
> >
> > On Tue, Aug 12, 2014 at 04:46:25PM +0200, Johan Hovold wrote:
> > >
> > > > + int (*gpio_startup)(st
On Sun, Aug 17, 2014 at 10:05:36AM +0800, Wang YanQing wrote:
> Hi Johan Hovold.
>
> Another two questions.
>
> On Tue, Aug 12, 2014 at 04:46:25PM +0200, Johan Hovold wrote:
> >
> > > + int (*gpio_startup)(struct usb_serial *serial);
> > > + void (*gpio_release)(struct usb_serial *serial);
On Sun, Aug 17, 2014 at 09:04:32AM +0800, Wang YanQing wrote:
> On Tue, Aug 12, 2014 at 04:46:25PM +0200, Johan Hovold wrote:
> > On Sat, Aug 09, 2014 at 01:28:28PM +0800, Wang YanQing wrote:
> > > PL2303 USB Serial devices always has GPIOs,
> >
> > Always? Are you sure? It's probably better to wr
Hi Johan Hovold.
Another two questions.
On Tue, Aug 12, 2014 at 04:46:25PM +0200, Johan Hovold wrote:
>
> > + int (*gpio_startup)(struct usb_serial *serial);
> > + void (*gpio_release)(struct usb_serial *serial);
>
> This isn't the right place for this abstraction. Most of the setup
On Tue, Aug 12, 2014 at 04:46:25PM +0200, Johan Hovold wrote:
> On Sat, Aug 09, 2014 at 01:28:28PM +0800, Wang YanQing wrote:
> > PL2303 USB Serial devices always has GPIOs,
>
> Always? Are you sure? It's probably better to write "might have" as they
> are unlikely to be accessible even if the pin
On Wed, Aug 13, 2014 at 09:05:09AM +0200, Johan Hovold wrote:
> On Wed, Aug 13, 2014 at 08:17:50AM +0200, Hannes Petermaier wrote:
> > > >
> > > > Known issue:
> > > > If gpios are in use(export to userspace through sysfs interface, etc),
> > > > then call pl2303_release(unplug usb-serial converto
On Wed, Aug 13, 2014 at 08:17:50AM +0200, Hannes Petermaier wrote:
> > >
> > > Known issue:
> > > If gpios are in use(export to userspace through sysfs interface, etc),
> > > then call pl2303_release(unplug usb-serial convertor, modprobe -r,
> etc),
> > > will cause trouble, so we need to make su
> >
> > Known issue:
> > If gpios are in use(export to userspace through sysfs interface, etc),
> > then call pl2303_release(unplug usb-serial convertor, modprobe -r,
etc),
> > will cause trouble, so we need to make sure there is no gpio user
before
> > call pl2303_release.
>
> This is a real p
On Sat, Aug 09, 2014 at 01:28:28PM +0800, Wang YanQing wrote:
> PL2303 USB Serial devices always has GPIOs,
Always? Are you sure? It's probably better to write "might have" as they
are unlikely to be accessible even if the pins exist.
> this patch add
> generic gpio support interfaces for pl2303
PL2303 USB Serial devices always has GPIOs, this patch add
generic gpio support interfaces for pl2303 USB Serial devices
in pl2303_type_data and pl2303_serial_private, then use them
to add GPIOs support for one type of them, PL2303HXA.
Known issue:
If gpios are in use(export to userspace through s
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