RE: [ECOS] USB host mode support?

[tim at cygnetinc dot com (Tim Michals)]

Thank you for your reply.

I have been using eCOS for the past year and I'm amazed at the growth of
features.  My complements to the chef's of Red Hat! Also, I'm in the middle
of doing using the current USB client side for an ARM implementation.

I think as more embedded systems grow there will be a need for host mode
USB.  At this time I'm going to try a do a host mode version.  Do you see
any big issues in porting BSD or Linux implementation to eCOS?



Tim

-----Original Message-----
From: Bart Veer [mailto:bartv@redhat.com]
Sent: Tuesday, February 20, 2001 7:25 AM
To: tim@cygnetinc.com
Cc: ecos-discuss@sources.redhat.com
Subject: Re: [ECOS] USB host mode support?


>>>>> "Tim" == Tim Michals <tim@cygnetinc.com> writes:

    Tim> All,
    Tim> Is this in the works?

Not as far as I know.

In some ways eCos and USB host support do not really go together. USB
involves plug and play so you cannot know in advance what USB
peripherals may get plugged in - including ones that have not even
been invented yet at the time you ship your eCos-based product. This
implies that you will need to load appropriate device drivers at
run-time, and eCos does not support dynamic loading of code.

There may be specific applications where this does not matter,
especially if you know in advance exactly what is going to be
connected to the USB bus, but for a general-purpose host solution you
would be looking at something like embedded Linux rather than eCos.

Of course when it comes to developing USB peripherals, eCos may well
be a sensible choice. Red Hat has recently contributed USB slave
support.

Bart