From: Dave Hansen <haveblue@us.ibm.com>
To: Russell King <rmk@arm.linux.org.uk>, linux-kernel@vger.kernel.org
Subject: sysrq on serial console
Date: Fri, 27 Sep 2002 16:45:12 -0700 [thread overview]
Message-ID: <3D94ED88.5040407@us.ibm.com> (raw)
Since the serial cleanups happened in 2.5, Magic Sysrq doesn't work
for me on the serial console.
It looks like the UART_LSR_BI bit needs to be set in the status
variable for the break character to be interpreted as a break in the
driver.
I doubt that it is actually broken, but it isn't immediately obvious
how that bit gets set. Is there something that I should have set when
the device was initialized to make sure that UART_LSR_BI is asserted
in "status" when the interrupt occurs?
--
Dave Hansen
haveblue@us.ibm.com
next reply other threads:[~2002-09-27 23:41 UTC|newest]
Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
2002-09-27 23:45 Dave Hansen [this message]
2002-09-28 0:29 ` sysrq on serial console H. Peter Anvin
2002-09-28 8:06 ` Russell King
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