do a bit better. But it still locks and
/var/log/messages throws a bunch of I/O errors. I'm running Ubuntu
5.10 Preview with a 2.6.12 kernel that I've recompiled without
CONFIG_EFI_PARTITION. I'm going to see if I have any luck with a
vanilla kernel.
Tyson Vinson
devices
Description: Binary data
sents the ports or slot numbers until you get
to the device. For USB I'd like to see an entry in that directory for
each USB endpoint.
The way devfs works looks very much like what I want.
...but I suppose I can like and want as much as I'd like until I
contribute some code.
Todd Lyons wrote:
Tyson D Sawyer wrote on Thu, Nov 07, 2002 at 05:49:10PM -0500 :
The only state I forsee is _slow_. A flat out balls to the wall copy
CD? Think of embedded systems. Additionally, embedded systems with
BTW: That's a LOT faster than a floppy.
Touche. I'll try
esktop machine and performance of a system
isn't always measured in MB/sec.
Cheers!
Ty
--
Tyson D Sawyer iRobot Corporation
Senior Systems EngineerMilitary Systems Division
[EMAIL PROTECTED] Robots for
ot having a
consistent ttyS to connect to is a problem. For now we are ignoring the
problem. Eventually I will have to do some sort of a hack with devfs
(or something like that) so that each node has a consistant name.
Cheers!
Ty
--
Tyson D Sawyer iRobot Corporation
these end up being a royal PITA. It is even worse for
USB where it complicates vendors trying to support their USB devices on
linux and users have devices where neither driver supports both devices.
Ty
--
Tyson D Sawyer iRobot Corporation
Senior Systems Engineer
xperiment?
Also, try 115,200 bps if you can?
> Hope this helps,
Yup. At leat the Edgeport data suggests that the latency I am seeing
isn't inherent to USB. I'm still wondering if it is somehow tunable
though.
> greg k-h
Thanks!
Ty
--
Tyson D Sawyer
The program will start at a packet size of 1 and time argv[4] packets.
It will then do 2, 4, 8, 16 byte packets up to size greg k-h
Thanks!
Ty
--
Tyson D Sawyer iRobot Corporation
Senior Systems EngineerReal World Interface Div.
[EMAIL PROTECTED]
people might have on this as
> round trip and/or one way latency is very important for some possible
> upcoming projects as well as understanding this UART. The latency of
> the UART isn't a killer, but I would like to understand it and it may
> be useful to reduce it if doing so is
ies better than others. But of
> course they cost more :)
Naturally, ;-) ...I'm using stock Intel UHCI.
> I'll let Bill Ryder answer the odd data characters, as he's the main
> author and maintainer of the driver, and I don't have one of these
> devices.
>
>
ith packet size. When run over the 8U232AM
the 1 byte latency is about 16-17ms and remains about 15ms longer than
the native UART for larger packet sizes. Is this latency somehow
tunable?
Thanks!
Ty
--
Tyson D Sawyer iRobot Corporation
Senior Systems Engineer
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