On 04/08/2014 05:36 PM, Greg Kroah-Hartman wrote: >> > Looks like this just changed the detection order so my device went from >> > ttyS2 to ttyS4: >> > >> > # cat /proc/tty/driver/serial >> > serinfo:1.0 driver revision: >> > 0: uart:16550A port:000003F8 irq:4 tx:0 rx:0 CTS|DSR|CD >> > 1: uart:16550A port:000002F8 irq:3 tx:0 rx:0 >> > 2: uart:unknown port:000003E8 irq:4 >> > 3: uart:unknown port:000002E8 irq:3 >> > 4: uart:ST16650V2 port:00001008 irq:18 tx:0 rx:0 >> > 5: uart:ST16650V2 port:00001000 irq:19 tx:0 rx:0 > That's not good. > > Geert, any idea how to fix this? Or should I just revert your change to > get back to the "working" behavior? During some large bisects on previous kernels, I've noticed it make a switch from ttyS2->ttyS4 before. In other words, this might have restored some *old* behavior inadvertently. The annoying thing is that these assignments *do* keep swapping around. I don't really care whether or not we revert this, only that we pick one order and stick with it. -- To unsubscribe from this list: send the line "unsubscribe linux-serial" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html