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SubjectRe: [PATCH 6/7] tty/powerpc: introduce the ePAPR embedded hypervisor byte channel driver
Alan Cox wrote:
> You really also need a hangup method so vhangup() does the right thing
> and you can securely do logins etc and sessions on your console. As
> you've got no hardware entangled in this and you already use tty_port
> helpers the hangup helper will do the work for you.

So all I need is this?

static void ehv_bc_tty_hangup(struct tty_struct *ttys)
{
struct ehv_bc_data *bc = ttys->driver_data;
tty_port_hangup(&bc->port);
}
I've noticed that some drivers flush their transmit buffers before calling
tty_port_hangup(), but some others don't. Should I do this too? I don't know
if hangup should be as quick as possible.

--
Timur Tabi
Linux kernel developer at Freescale



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