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| author | sam <sam@FreeBSD.org> | 2009-06-22 22:54:13 +0000 |
|---|---|---|
| committer | sam <sam@FreeBSD.org> | 2009-06-22 22:54:13 +0000 |
| commit | 0d93c7da526dc01fedf206d50f324a5f0a5b937c (patch) | |
| tree | b1a232abd918de05ebbcf5fe30ce7736fede6798 /sys/dev/usb/usb_error.c | |
| parent | 2fddb9e2cc52130e969c380acc1c29fecb0147b9 (diff) | |
| download | FreeBSD-src-0d93c7da526dc01fedf206d50f324a5f0a5b937c.zip FreeBSD-src-0d93c7da526dc01fedf206d50f324a5f0a5b937c.tar.gz | |
o add a bus space tag that forces a 2usec delay between r/w ops; this is
used for the optional GPS+RS485 uarts on the Gateworks Cambria boards
which otherwise are unreliable
o setup the hack bus space tag for the GPS+RS485 uarts
o program the gpio interrupts for the uarts to be edge-rising
o force timing on the expansion bus for the uarts to be "slow"
Thanks to Chris Lang of Gateworks for these tips.
Diffstat (limited to 'sys/dev/usb/usb_error.c')
0 files changed, 0 insertions, 0 deletions
