Hi, all I am trying to re-write the ACM CDC modem driver and stuck on a problem. I have a custom ISDN USB modem that provides me with 3 channels (2B+D). All channels are packed into single data stream and some framing is done to distinguish between channels.
I took ACm driver and heavily modified it. The idea was to register 3 minor numbers for same hardware and register 3 tty ports. I left control and read URB's as is and create write URB for each TTY. Read and write data are pre-processed by a cutom code to deal with framing. Can anyone see a design flaw in such approach? Is there a better idea? Driver installs and even works for mytty0 (first registered minor). If I try to use other minors, terminal program (I use microcom) causes segmentation fault opening the tty. I can not really see much, because my terminal scrolls too far showing kernel dump. Thanks, /*******************************************************/ Rudolf Ladyzhenskii Senior Design Engineer Open Networks Pty. Ltd. Level 26, 35 Collins Street, Melbourne VIC 3000 e-mail: [EMAIL PROTECTED] phone: +61 3 9656 5107 fax: +61 3 9656 5122 web: www.opennw.com /*******************************************************/ ------------------------------------------------------- This SF.net email is sponsored by: The Robotic Monkeys at ThinkGeek For a limited time only, get FREE Ground shipping on all orders of $35 or more. Hurry up and shop folks, this offer expires April 30th! http://www.thinkgeek.com/freeshipping/?cpg297 _______________________________________________ [EMAIL PROTECTED] To unsubscribe, use the last form field at: https://lists.sourceforge.net/lists/listinfo/linux-usb-devel
