Re: [PATCH] ftdi_sio: set default latency at device probe time
Edwin Olson <[email protected]>
| Newsgroups | gmane.linux.usb.devel |
|---|---|
| Message-ID | <[email protected]> |
Hi, I'm following up on this previously-sent patch (5/30/2007), which didn't seem to attract any comment. Has it been incorporated? Also, aside from rummaging through Greg's git repositories on git.kernel.org, is there a good way to track the progress of a patch? -Ed Edwin Olson wrote on 5/30/2007: > The FTDI devices default to a very long timeout period (16ms) which is > detrimental to performance. Previous patches have exposed the latency > timer via sysfs attributes, but increasingly, it seems that *everyone* > wants lower timeout latencies. Given that there's basically no > downside (a tiny increase in host CPU utilization resulting from more > IN urbs), it makes sense to make a lower timeout the default. This > patch sets the latency timer to 1 when the device is probed. > > Of course, the sysfs attributes remain for those who want to twiddle > them. > > This patch compiles against 2.6.21.3, is tested against 2.6.20.1 (it > applies to 2.6.20.1 with fuzz -F4). > > Signed-off-by: Edwin Olson <[email protected]> > ------------------------------------------------------------------------- This SF.net email is sponsored by DB2 Express Download DB2 Express C - the FREE version of DB2 express and take control of your XML. No limits. Just data. Click to get it now. http://sourceforge.net/powerbar/db2/ _______________________________________________ [email protected] To unsubscribe, use the last form field at: https://lists.sourceforge.net/lists/listinfo/linux-usb-devel