21 Oct
2011
21 Oct
'11
1:32 p.m.
On Fri, 21 Oct 2011 09:08:30 +0200 Jean Delvare jdelvare@suse.de wrote:
A udelay value of 20 leads to an I2C bus running at only 25 kbps. A value of 40 as the nouveau driver has is even slower at 12.5 kbps. I2C devices can typically operate faster than this, 50 kbps should be fine for all devices (and compliant devices can always stretch the clock is needed.)
That depends on your cable, drive and signal quality. It's not something you just turn up because it seems a good idea. Reliability is MUCH more important than shaving microseconds off monitor probe times.
Alan