On Tue, 08 May 2007 07:58:20 -0500 "r10 kindsofpeople" <[EMAIL PROTECTED]> wrote:
> I'm having what appears to be overflow problems within the > snd-serial-u16550 driver. > > I'm using 1.0.14rc1. > > When calling "amidi -p hw:0,0,0 -s FILE.SYX" where hw:0,0,0 is the > snd-serial-u16550 port, the data coming from the serial port appears > to be a small fraction (900 bytes) of the total file size (13000 > bytes). > > If I repeat the experiment, but send to a USB MIDI port, all is well. > If I send the data to the serial port using calls to > snd_seq_event_output_direct(), and I add a 1 second pause between > every sysex message, all is well (aside from it taking too long). > I'm logging data directly at the PC serial port using another PC, so > I've eliminated the possibility that the serial-to-MIDI hardware is > losing the data. > > My code is using blocking mode, and besides, amidi behaves the same > way as my code. > > I'm hesitant to blame the driver code (especially given that last > time I did this, it was an interrupt configuraiton problem), but I > could use some help figuring out where to look next. Please? > > Are there calls I can use to ensure that the previous message has > gone out before writing the next one? Given the amount of data I'm > sending, should I be using snd_seq_event_output and scheduling the > events on the queue? > > John > > _________________________________________________________________ > More photos, more messages, more storageget 2GB with Windows Live > Hotmail. > http://imagine-windowslive.com/hotmail/?locale=en-us&ocid=TXT_TAGHM_migration_HM_mini_2G_0507 > > I think you're more likely to get a response to this on the alsa-devel mailing list. As I don't subscribe to that list, perhaps you have already sent this there. In that case, ignore. :-) ------------------------------------------------------------------------- This SF.net email is sponsored by DB2 Express Download DB2 Express C - the FREE version of DB2 express and take control of your XML. No limits. Just data. Click to get it now. http://sourceforge.net/powerbar/db2/ _______________________________________________ Alsa-user mailing list Alsa-user@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/alsa-user
