Re: [yocto] [meta-raspberrypi] PL2303 instability on RPi 3 but not on RPi 2

2016-07-17 Thread Martin Bergek
Thanks Andrei, I have done some more testing and I have found that - with everything else being the same - I can only see the issue on kernel 4.4. On kernel 4.1 it is stable. As an alternative workaround I have noticed that disabling USB 2.0 by booting with dwc_otg.speed=1 makes the system sta

Re: [yocto] [meta-raspberrypi] PL2303 instability on RPi 3 but not on RPi 2

2016-07-08 Thread Andrei Gherzan
On Mon, Jun 13, 2016 at 11:24:08PM +0200, Martin Bergek wrote: > Hi, > > I am testing an image on a system including a PL2303 (USB to serial bridge) > and have noticed an issue on the Raspberry Pi 3. The system will run fine for > an hour or two but then the kernel logs the following error: > >

[yocto] [meta-raspberrypi] PL2303 instability on RPi 3 but not on RPi 2

2016-06-13 Thread Martin Bergek
Hi, I am testing an image on a system including a PL2303 (USB to serial bridge) and have noticed an issue on the Raspberry Pi 3. The system will run fine for an hour or two but then the kernel logs the following error: pl2303 ttyUSB0: usb_serial_generic_read_bulk_callback - urb stopped