> So a different device works fine, but this specific one does not?
Yes, and I just tested under Windows, same results !!! No data seems to
come under 115200 bauds.
So I think it's a material problem oh the device, not a driver problem
(or both drivers, Linux and Windows... I don't think so).
Sorry for the inconvenience, I'll contact the device manufacturer.
> Hm, how are you setting the baud rate? Through minicom?
Yes, through minicom. 1200 bauds is the speed needed by the device.
> What do you mean by "fifo buffer"? The driver doesn't buffer anything
> up, but passes along whatever the device sends it, and is sent to it
to the device.
Your answer satisfies me.
Thanks for your availability and answers
Best regards,
Laurent
Le 18/02/2015 17:06, Greg KH a écrit :
On Wed, Feb 18, 2015 at 11:15:57AM +0100, faivre.laurent@xxxxxxxxxxx wrote:
The ftdi_sio driver is the correct driver for this device, please use that one.
OK, I use it now
With this same device?
No, but for the same application
So a different device works fine, but this specific one does not?
Are you sure you don't have hardware flow control enabled? It's a
common mistake with serial devices.
no flow control needed, no flow control enabled
I need 1200 7E1, with minicom I receive data at 115200 (or higher) 7E1, but
nothing at 1200 7E1 (or other speed lower than 115200)
Hm, how are you setting the baud rate? Through minicom? And 1200
doesn't work? I tried that speed a while ago with one of my devices and
it seemed to work fine, but it's an odd, slow, speed, and maybe some
newer devices don't support it. I don't have one here to test with at
the moment, sorry, perhaps others can try this out.
is there a FIFO buffer ? How to cancel it ? (It's a common problem with
Windows but I've never met yet with Linux)
What do you mean by "fifo buffer"? The driver doesn't buffer anything
up, but passes along whatever the device sends it, and is sent to it to
the device.
thanks,
greg k-h
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