On 11/23/05, Russell King <[email protected]> wrote:
> > Plus I have 64 tty devices. Couldn't the tty devices be created
> > dynamically as they are consumed? Same for the loop and ram devices?
>
> You do realise that the dynamic device creation for those 64 console
> devices is done via the console device being _opened_ by userspace?
>
> Hence, if the device doesn't exist in userspace, it can't be created
> for userspace to open it to create the device via udev. Have you
> noticed a catch-22 with that statement?
Couldn't we create tty0-3 and then when one of those gets opened,
create tty4, and so on? Then there would always be two or three more
tty devices than there are open tty devices.
>
> Note that with tty devices, the tty layer has to be told the number
> of devices you want to support when you first register your driver.
> You're fixed to that maximum number from that point on, until you
> unregister *all* your ports and driver.
>
> --
> Russell King
> Linux kernel 2.6 ARM Linux - http://www.arm.linux.org.uk/
> maintainer of: 2.6 Serial core
>
--
Jon Smirl
[email protected]
-
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to [email protected]
More majordomo info at http://vger.kernel.org/majordomo-info.html
Please read the FAQ at http://www.tux.org/lkml/
[Index of Archives]
[Kernel Newbies]
[Netfilter]
[Bugtraq]
[Photo]
[Stuff]
[Gimp]
[Yosemite News]
[MIPS Linux]
[ARM Linux]
[Linux Security]
[Linux RAID]
[Video 4 Linux]
[Linux for the blind]
[Linux Resources]
