Hi Corey: * Corey Minyard <cminyard at mvista.com> [2005-01-19 22:11:23 -0600]: > Mark M. Hoffman wrote: > > > > >Well, wait_event_interruptible_timeout() schedules, so at a quick glance > >this will not work for i2c-ibm_iic at least. But more generally... > > > > > I think I got that one. If you look at the function in the patch, I > made some changes to that. I'm sorry but I don't see it. All I see is that you modified the function iic_wait_for_tc() to not schedule, but only if it's in polling mode. The interrupt mode code is unchanged. > >I started to rewrite i2c-i801 [1] to use interrupts rather than pure > >polling as it does now, so I'm interested to know: how can the panic-time > >operation work for bus drivers that need interrupts? > > > > > What I have done in the IPMI driver is when you wait for an operation, > if you are in a panic then call the interrupt handler continuously until > the operation completes. Sort of like the network polling does. So e.g. i2c-ibm_iic would need similar changes too, right? Regards, -- Mark M. Hoffman mhoffman at lightlink.com
