Hi Uwe,
Thanks, it works!
Please note that Ubuntu has no 'users' group, so you should add another
group instead to make it work.
Regards,
Danny Haak
-----Original Message-----
From: Uwe Bonnes [mailto:bon@xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx]
Sent: woensdag 22 juli 2009 10:41
To: libftdi@xxxxxxxxxxxxxxxxxxxxxxx
Subject: Re: Permissions and libftdi
>>>>> "Danny" == Danny Haak <danny.haak@xxxxxxxxx> writes:
Danny> Hi all, I am currently experimenting using libftdi on Ubuntu.
I
Danny> compiled the 'simple' example. danny@ubuntu-desktop:~$ gcc
Danny> simple.c /usr/lib/libftdi.so -o simple
Danny> When I tried to run it, I got the following error:
Danny> danny@ubuntu-desktop:~$ ./simple unable to open ftdi device:
-8
Danny> (inappropriate permissions on devic
Danny> When the example is run as root, it works fine.
Danny> danny@ubuntu-desktop:~$ sudo ./simple ftdi_read_chipid: 0
FTDI
Danny> chipid: 7EEE7FC5
Danny> Is it absolutely necessary to run the program as root? Or is
it
Danny> possible to change the permissions of a user on the device?
If
Danny> so, which device? I couldn't found anything on this in the
Danny> documentation.
In /etc/udev/rules ( or an appropriate place in your distribution) you
should something like
#FT2232 Adapter
ACTION=="add", BUS=="usb", SYSFS{idVendor}=="0403",
SYSFS{idProduct}=="6010", GROUP:="users", MODE:="0660"
#FT232 Adapter
ACTION=="add", BUS=="usb", SYSFS{idVendor}=="0403",
SYSFS{idProduct}=="6001", GROUP:="users", MODE:="0660"
#FT Adapter
ACTION=="add", BUS=="usb", SYSFS{idVendor}=="0403",
SYSFS{idProduct}=="6006", GROUP:="users", MODE:="0660"
--
Uwe Bonnes bon@xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx
Institut fuer Kernphysik Schlossgartenstrasse 9 64289 Darmstadt
--------- Tel. 06151 162516 -------- Fax. 06151 164321 ----------
--
libftdi - see http://www.intra2net.com/en/developer/libftdi for details.
To unsubscribe send a mail to
libftdi+unsubscribe@xxxxxxxxxxxxxxxxxxxxxxx
--
libftdi - see http://www.intra2net.com/en/developer/libftdi for details.
To unsubscribe send a mail to libftdi+unsubscribe@xxxxxxxxxxxxxxxxxxxxxxx
|
