> Any other suggestions?
For those cases the last set of patches merged added
extern inline int tty_port_users(struct tty_port *port)
{
return port->count + port->blocked_open;
}
however using that without care (eg without holding the port lock) will
leave races. There is of course no reason the USB layer shouldn't either
keep another flag that indicates what USB needs to know or just adjust
where it sets ASYNCB_INITIALIZED.
However - you need to think hard about what the rules are for the URB
retransmission versus a parallel hangup/close/open sequence. Trying to do
it in the interrupt handler seems rather bogus when the URB could be
cancelled in the close down call ?
Alan
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