In my last post I have been blogged about a Hisilicon HI3515 based DVR recorder.

The device itself functioning well, except the web interface which requires ActiveX control installation which is unavailable for my system.
After a quick look at the u-boot I have figured out that we can boot the kernel through tftp without hurting the Flash device.

The first interesting project is the ezbox:
https://code.google.com/p/ezbox/

The project itself is very strange.
It provides a buiold system for different embedded devices (AR7240 based routers, HI3515 based Multimedia Processing Platform, x86 based CNC controller)

It includes the liloutdistro for a Hisilicon HI3515 MPPP Multimedia Procesing Platform.

This also includes some binary kernel blobs for handling the HI3515 peripherials:
https://code.google.com/p/ezbox/source/browse/#svn%2Ftrunk%2Fpool%2Fpackages%2F3rd-party%2Fhisilicon

There are serveral sample programs including binary only libraries in the distro also, but without source.
https://code.google.com/p/ezbox/source/browse/#svn%2Ftrunk%2Fpool%2Fpackages%2F3rd-party%2Fhisilicon%2Fhisilicon-hi35xx-mpp%2Ffiles%2Fhi3515%2Fsample

So we are blessed with some binary only stuffs around for the 2.6.24 kernel only without any examples. Don't panic, use the google-fu.

First interestingstuff is this SDK from our chinese friends:
http://www.pudn.com/downloads111/source ... 62702.html

The second one is the smartmind project:
http://smartmind.googlecode.com/svn-his ... 1x_device/

And the last one:
http://code.google.com/p/fvp/source/bro ... k%2F%20fvp

The trick is simple, but not obvious:


echo "disallow method ppdev" > /etc/ieee1284.conf


Never ever move your buildroot directory because it does not like it.

I have recently tried to breathe life to the serial port of my DELL D630 notebook under Ubuntu Natty, but the opening always failed with I/O error.

I have tried the relevant acpi=off, pnpacpi=off kernel parameters, updated the BIOS, but these thigns did not lead to succes. As final trying I have switched the port from COM1 to COM2 int the BIOS and finally it became available as /dev/ttyS1

I have tried to use the Lattice ispVM under Ubuntu 11.04, with the Lattice USB download cable, but I have to run it as root, even after adding the udev rules mentioned in the FAQ.

After some strace analyzing I have figured out that it is trying to open the /dev/bus/usb/{roothub}/{devide} nodes. Since then the download cable's node was read only it failed.

I have written the following udev rule to the /etc/udev/rules.d/51-lattice.rules file inspired by my AVR doper's rule:


SUBSYSTEM=="usb", ACTION=="add", ATTR{idVendor}=="1134", ATTR{idProduct}=="8001", MODE="0666"