Re: [Ftdi-usb-sio-devel] Interleaved write/read operations on ftdi_sio seem to cause an error

[David D. <dav...@ll...>]

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Hello,

Bill Ryder wrote:
> You could try it without the hub in the way or maybe off another usb port.

Indeed, it seems to have been something like this. I didn't use a hub,
at least not one I plugged myself: I was using a usb port available in
front of the PC box. However, it looks like this port was behind
"something" (a hub ?) somewhere inside the PC box.

Anyway, now I am using one of the usb ports on the back of the PC, and
everything seems to work really well: we could perform at least 200000
write/read cycles [128 bytes] without any error. I don't know if it's a
hub thing or not, but using this other port seems to have solved our
problem. Now we're trying write/read cycles on a 16384-byte deep Fifo
for the next 12h, and we'll see tomorrow morning if it worked...

Thank you a lot !
Long live ftdi_sio !
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