[IAEP] Fwd: Heart Rate Monitor Peripheral

Peter Robinson pbrobinson at gmail.com
Wed Apr 8 08:40:57 EDT 2009

> There are two separate issues I encountered with TA (and Measure). One
> is the need for patches to the alsa audio to accommodate the special
> OLPC hardware modifications.

That would need to be accepted upstream by the alsa project, and then
distros will automatically get the changes when they are part of a

> The other is a means within the Sugar
> bundling system to include binaries for multiple architectures. I
> actually had written a work-around for the former, but I remain
> ignorant about the details of how to best handle the latter. (At one
> point, Sascha had helped me include a script that would build the
> appropriate binaries at install time, but that solution depends upon a
> build environment be installed, which is not the default for most OLPC
> systems. Oops.)

That would be just a packaging procedure. In the case of Fedora it
would be just the arch dependant rpms as opposed to using a activity
.xo file which I believe are arch independent. Unless I've missed
something here.

> Regarding available sensors, Arjun describes some on the Measure page
> in the OLPC wiki


> http://wiki.laptop.org/go/Measure
> There are also many people working on USB sensor input devices that
> would be great to support in general.

In fedora at least from a driver perspective it would land in Fedora
as soon as the upstream kernel has the drivers. I'm not sure whether
there is a defined api for accessing those sort sensors on linux. If
there was I would presume as the hardware is added that TA/measure
would automatically get support for the hardware as its added, if
there's not I presume there would need to be individual support added
for each device.


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