On Wed, 25 Jul 2018, Bartlomiej Zolnierkiewicz wrote:
> > Can unregister_framebuffer() be called when /dev/fb0 is open as a file
> > handle and/or mapped to some process?
>
> It should be OK.
>
> > > Moreover the dlfb <-> fb_info locking scheme seems to be reversed
> > > (+racy) as it is dlfb
es seems to be
> > unbinding the console.
> >
> > > PCI framebuffer drivers don't have this problem because the user is not
> > > expected to just unplug the PCI card while it is being used by the
> > > console.
> >
> > PCI framebuffer drivers currently don&#x
On Wednesday, July 04, 2018 05:31:19 PM Noralf Trønnes wrote:
>
> Den 03.07.2018 19.18, skrev Mikulas Patocka:
> >
> > On Tue, 3 Jul 2018, Bartlomiej Zolnierkiewicz wrote:
> >
> >> Hi,
> >>
> >> On Sunday, June 03, 2018 11:46:29 AM Mikulas Patocka wrote:
> >>> I have a USB display adapter using th
On Wed, 4 Jul 2018, Noralf Trønnes wrote:
> AFAIU calling unregister_framebuffer() with open fd's is just fine as
> long as fb_info with buffers stay intact. All it does is to remove the
> fbX from userspace. Cleanup can be done in fb_ops->fb_destroy.
>
> I have been working on generic fbdev em
On Wed, 4 Jul 2018, Bartlomiej Zolnierkiewicz wrote:
> On Tuesday, July 03, 2018 01:18:57 PM Mikulas Patocka wrote:
> >
> > On Tue, 3 Jul 2018, Bartlomiej Zolnierkiewicz wrote:
> >
> > > Hi,
> > >
> > > On Sunday, June 03, 2018 11:46:29 AM Mikulas Patocka wrote:
> > > > I have a USB display a
Den 03.07.2018 19.18, skrev Mikulas Patocka:
On Tue, 3 Jul 2018, Bartlomiej Zolnierkiewicz wrote:
Hi,
On Sunday, June 03, 2018 11:46:29 AM Mikulas Patocka wrote:
I have a USB display adapter using the udlfb driver and I use it on an ARM
board that doesn't have any graphics card. When I plug
On Tuesday, July 03, 2018 01:18:57 PM Mikulas Patocka wrote:
>
> On Tue, 3 Jul 2018, Bartlomiej Zolnierkiewicz wrote:
>
> >
> > Hi,
> >
> > On Sunday, June 03, 2018 11:46:29 AM Mikulas Patocka wrote:
> > > I have a USB display adapter using the udlfb driver and I use it on an ARM
> > > board th
On Wed, 4 Jul 2018, Daniel Vetter wrote:
> On Sun, Jun 03, 2018 at 11:46:29AM -0400, Mikulas Patocka wrote:
> > I have a USB display adapter using the udlfb driver and I use it on an ARM
> > board that doesn't have any graphics card. When I plug the adapter in, the
> > console is properly displa
On Sun, Jun 03, 2018 at 11:46:29AM -0400, Mikulas Patocka wrote:
> I have a USB display adapter using the udlfb driver and I use it on an ARM
> board that doesn't have any graphics card. When I plug the adapter in, the
> console is properly displayed, however when I unplug and re-plug the
> adapter
On Tue, 3 Jul 2018, Bartlomiej Zolnierkiewicz wrote:
>
> Hi,
>
> On Sunday, June 03, 2018 11:46:29 AM Mikulas Patocka wrote:
> > I have a USB display adapter using the udlfb driver and I use it on an ARM
> > board that doesn't have any graphics card. When I plug the adapter in, the
> > console
Hi,
On Sunday, June 03, 2018 11:46:29 AM Mikulas Patocka wrote:
> I have a USB display adapter using the udlfb driver and I use it on an ARM
> board that doesn't have any graphics card. When I plug the adapter in, the
> console is properly displayed, however when I unplug and re-plug the
> adapte
I have a USB display adapter using the udlfb driver and I use it on an ARM
board that doesn't have any graphics card. When I plug the adapter in, the
console is properly displayed, however when I unplug and re-plug the
adapter, the console is not displayed and I can't access it until I reboot
the b
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