drivers/usb/serial/cp2101.c can't select() ?

David Brownell <[email protected]>
Newsgroups gmane.linux.usb.devel
Message-ID <[email protected]>
Someone might want to look at this... presumably the bug
shows up in current code.

----------  Forwarded Message  ----------

Subject: [avrdude-dev] ser_posix.c: is select()ing for the write descriptor useful at all?
Date: Wednesday 18 April 2007 1:36 pm
From: Joerg Wunsch <[email protected]>
To: [email protected]
Cc: Axel Wachtler <[email protected]>, Brian Dean <[email protected]>

A fellow worker recently stumbled across avrdude not working against a
bootloader that was behind one of these Silabs CP210x USB/RS-232
bridges under Linux.  It turned out that somehow, the Linux driver for
that part (unlike the FTDI driver) does not support select() on a
write descriptor properly, so it always runs into a timeout, and
avrdude then complains the programmer were not responding.

...


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