Hoshpak <[email protected]> writes: Hi,
> Am 12.11.2012 13:37, schrieb Arnaud Patard "(Rtp): >> It would be interesting to look at how "pic_raw 103" is working. For >> instance, maybe booting the stock os, use pic_raw and then reboot may >> disable the watchdog. Unfortunately, uboot may restart/reconfigure the >> watchdog. > > It seems pic_raw is just opening the character device /dev/pic and writes > single chars to it. Unfortunately, the pic driver seems to be specific > to the Qnap kernel and is not included in the mainline kernel so it > seems using pic_raw was off the table anyway. > ok. I was assuming it was userspace-only/using the serial port. >> An other possibility is to try something like echo -n 'g' > /dev/ttyS1 >> after booting the installer. This may be dangerous. I'm assuming that >> the PIC is connected on the serial port 1 and that pic_raw is only >> writing a char to the serial port like on other qnap. This may be wrong >> so it may 'upset' the ucontroller and break something. > > Indeed this device seems to be the way to talk to it on a normal system. > After digging some more around I found qcontrol > (http://code.google.com/p/qcontrol/ ) which uses this to communicate > with the PIC to do things like fan control and beeping and is already > included in the Debian installer for the Qnap devices. It write the > hexadecimal representation of the decimal pic_raw commands to the > device. It was quite easy to add another function to write "0x67" which > effectively disabled the PIC watchdog. (If anyone wants to play with > qcontrol I would recommend using the Debian sources since they support > more devices than upstream) > > So after recompiling qcontrol and disabling the PIC watchdog, the > installation ran just find as expected. After the first reboot the Can you please open a bug on the qcontrol package and attach your changes so that it can be fixed for the other ts219 pII users ? > modified qcontrol binary had to be added to the system and the > "watchdog" daemon from the repository is now used to keep the other > watchdog happy. on a side note, would be interesting to know also how to use the pic as watchdog but I guess it's lower priority than having qcontrol being able to disable it. Arnaud -- To UNSUBSCRIBE, email to [email protected] with a subject of "unsubscribe". Trouble? Contact [email protected] Archive: http://lists.debian.org/[email protected]
