Hello, I did some progress. I read 7.X uvisor.c code and I noted this:
/* * Crank down UVISORBUFSIZE from 1024 to 64 to avoid a problem where * the Palm device and the USB host controller deadlock. The USB host * controller is expecting an early-end-of-transmission packet with 0 * data, and the Palm doesn't send one because it's already * communicated the amount of data it's going to send in a header * (which ucom/uvisor are oblivious to). This is the problem that has * been known on the pilot-link lists as the "[Free]BSD USB problem", * but not understood. */ #define UVISORIBUFSIZE 64 #define UVISOROBUFSIZE 1024 So I changed UVISOR_BUFSIZE from 1024 to 64 on uvisor.c from 8.X and bingo some transferts worked, actually backup and files list worked but I wasn't able to install files. So I modified uvisor.c to use 2 different buffer sizes as it's done on 7.X (see attached patch). I tried different couples of bufsize to eventually find a working one. Now everything is working. I just note that sometimes during backup of a large file, if there is activity on my box (USB activity I think) the transfert of the file fails but it can be fixed at next launch of the backup. Well I dunno if it's ready to be committed but it allows me to use my Palm Z22 under 8.0-CURRENT. -- Marc
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