Andy Gay writes: > How does the serial driver know it has to call ppp_asynctty_wakeup()?
The serial driver is supposed to call the line discipline's wakeup function when it has room in the output buffer and the TTY_DO_WRITE_WAKEUP bit is set in tty->flags. When the serial port is set to the ppp line discipline, then it uses the functions defined in the ppp_ldisc structure in drivers/net/ppp_async.c, and the write_wakeup field in that structure points to ppp_asynctty_wakeup. > There were a bunch of changes to the serial drivers between 2.6.15 and > 2.6.16, maybe that's where this problem was introduced. Do we know which > serial driver is involved in the original report? Apparently it's the pty driver. Paul. - To unsubscribe from this list: send the line "unsubscribe netdev" in the body of a message to [EMAIL PROTECTED] More majordomo info at http://vger.kernel.org/majordomo-info.html
