Thanks Dave, in my case it does have problem for bulk reading, while the writing is OK. Thanks for your reply, I'll be waiting for the patch.
Hongjun On Wed, Mar 4, 2009 at 1:03 PM, David Brownell <[email protected]> wrote: > On Wednesday 04 March 2009, ququ wrote: >> I was struggling to make 2 usb-to-serial devices work together, until >> I saw this article in the mail list: >> >> 2 USB devices supported? >> http://www.mail-archive.com/[email protected]/msg02188.html >> >> I believe what I had was the same problem. I'm wondering if anyone get >> this fixed? Thanks > > A partial fix is queued for the 2.6.30 merge window. > > That fix uses the NAK timeout mechanism for bulk reads, > which is the most troublesome case. That's likely what > made trouble for your serial adapter scenario. > > Other cases currently ignored are bulk writes, and both > write or read paths for control and interrupt transfers. > > - Dave > _______________________________________________ Davinci-linux-open-source mailing list [email protected] http://linux.davincidsp.com/mailman/listinfo/davinci-linux-open-source
