Greg KH ha scritto:
On Tue, Apr 13, 2010 at 07:40:24PM +0200, Andrea Cometa wrote:
Hi,
First of all I apologize for my poor knowledge of English ...
I'm having problems with a USB serial adapter Prolific PL2303.
My Linux distribution is Ubuntu 9.10 with kernel 2.6.31-20.
the adapter is recognized and the file ttyUSB0 is also created.
But the serial device receives and sends no reply.
On the Internet I found some information concerning the possibility that
this adapter is a pl2303x instead pl2303, as the command lsusb shows the
value of "bmaxpacketsize0 64".
Have any ideas about how to fix this problem?
The "x" device should work with the latest driver, can you try out a
newer kernel version? The 2.6.31 kernel was known to have problems with
the pl2303 and other tty drivers.
thanks,
greg k-h
hi,
i've installed kernel 2.6.34-rc2 but there was no change
there may be an old working kernel?
thanks
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