Re: [Linux-usb-users] high cpu usage with ftdi_sio

2006-01-07 Thread Greg KH
On Wed, Jan 04, 2006 at 03:55:08PM -0500, Edwin Olson wrote: > > >Ick, that's some small chunks :( > > > > I saw another thread which seems to describe another possibility (and > suggesting that visor has fixed it): > > http://www.mail-archive.com/linux-usb-devel@lists.sourceforge.net/msg38382.

Re: [Linux-usb-users] high cpu usage with ftdi_sio

2006-01-04 Thread Edwin Olson
Ick, that's some small chunks :( I saw another thread which seems to describe another possibility (and suggesting that visor has fixed it): http://www.mail-archive.com/linux-usb-devel@lists.sourceforge.net/msg38382.html The suggestion being that maybe I'm writing faster than my USB device

Re: [Linux-usb-users] high cpu usage with ftdi_sio

2006-01-04 Thread Greg KH
On Tue, Jan 03, 2006 at 10:12:49PM -0500, Edwin Olson wrote: > I have a ftdi_sio FT245BM device to which I am streaming about 15KB/s > (150Kb/s) of data. There's a relatively small amount of data being > returned (<1KB/s). The actual writes are in chunks of about 32B each. Ick, that's some small

[Linux-usb-users] high cpu usage with ftdi_sio

2006-01-03 Thread Edwin Olson
I have a ftdi_sio FT245BM device to which I am streaming about 15KB/s (150Kb/s) of data. There's a relatively small amount of data being returned (<1KB/s). The actual writes are in chunks of about 32B each. I am seeing high CPU usage on my 2.8GHz pentium4 running fedora core 4 (kernel 2.6.14-1