USB audio device on Raspberry Pi - link_elf: symbol isa_dmastatus undefined

[Johny Mattsson]

On 1 May 2014 00:14, Ian Lepore <ian at freebsd.org> wrote:

> I was doing some testing on a wandboard (about twice as fast an an rpi)
> with
> more than 20k int/sec without having any problems.
>

On a similar note, I've pushed an i.MX 283 (400MHz) board to above 300k
int/sec, on Linux. Admittedly at that point my shell wasn't what you'd call
"responsive" however =) The ISR in that scenario was the GPIO handler, so
probably a bit more light-weight than an audio ISR.