Dick Roth KA1OZ wrote:
Brendan Minish wrote:
prolific support is in the 2.6 kernels, I have yet to meet a USB driver
that isn't plug and play under modern 2.6 kernels. no additional drivers
required
In general, USB TTY devices ought to comply with the relevant USB device
class and ought not to require a vendor specific driver. Any vendor
that absolutely needs a specific driver should be discouraged. (Windows
device drivers often aren't actually real device drivers, but rather an
association between the device ID code and a standard driver. Windows
seems less willing to match devices on class alone, except for mass
storage, than Linux.)
My main pc runs a variant of Red Hat Linux (CentOS 5.1). Has anyone
Brendan, this was way too simple! I found that I had to execute k3util
as root, otherwise it wouldn't open the ttyUSB0 port.
I cannot think of any good reason why this would be necessary, and as a
matter of policy one should reject software that shouldn't need to run
as root, but does actually need to. I think it is more likely that the
ttyUSB0 device node needs its permissions changing or accommodating to.
Often such nodes have an appropriate group, and all you need to do is
to add the user that uses them to that group or make the executable "set
group" to the group. However, you can always add an appropriate group.
Less satisfactory is to make the executable "set user" to root, but that
means putting unnecessary trust in it, although it lessens the risk of
doing something else dangerous.
>>> My main pc runs a variant of Red Hat Linux (CentOS 5.1). Has anyone
>>
PS Note that Centos is a derivative, not a variant of Red Hat; Red Hat
would deny any responsibility for it. Red Hat commercialise open source
software by branding it and then charging for the use of the brand and
for support. CentOs remove the Red Hat branding and bypasses the
support contract that encumbers commercially supplied copies of Red Hat
Linux.
--
David Woolley
"The Elecraft list is a forum for the discussion of topics related to
Elecraft products and more general topics related ham radio"
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