lists.openwall.net   lists  /  announce  owl-users  owl-dev  john-users  john-dev  passwdqc-users  yescrypt  popa3d-users  /  oss-security  kernel-hardening  musl  sabotage  tlsify  passwords  /  crypt-dev  xvendor  /  Bugtraq  Full-Disclosure  linux-kernel  linux-netdev  linux-ext4  linux-hardening  linux-cve-announce  PHC 
Open Source and information security mailing list archives
 
Hash Suite: Windows password security audit tool. GUI, reports in PDF.
[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]
Date:	Fri,  9 Dec 2011 18:07:20 +0100
From:	Wolfram Sang <w.sang@...gutronix.de>
To:	linux-serial@...r.kernel.org
Cc:	linux-kernel@...r.kernel.org, Greg KH <gregkh@...e.de>,
	Alan Cox <alan@...ux.intel.com>,
	Claudio Scordino <claudio@...dence.eu.com>,
	Wolfram Sang <w.sang@...gutronix.de>
Subject: [PATCH RESEND 8/8] serial: 8250: fix comment about accessing EMSR

All docs I checked do say LCR should NOT be 0xBF (16c850, 16c854,
16v2750). Fix it according to that, since the only usage of the register
currently implements the revised access method. If somebody later finds
a derivate which actually does need 0xBF to enable that register, we can
update the comment again with precise references.

Signed-off-by: Wolfram Sang <w.sang@...gutronix.de>
---
 include/linux/serial_reg.h |    2 +-
 1 files changed, 1 insertions(+), 1 deletions(-)

diff --git a/include/linux/serial_reg.h b/include/linux/serial_reg.h
index 0267bab6..0a1beca 100644
--- a/include/linux/serial_reg.h
+++ b/include/linux/serial_reg.h
@@ -211,7 +211,7 @@
 #define UART_FCTR_TX		0x80  /* Programmable trigger mode select */
 
 /*
- * LCR=0xBF, FCTR[6]=1
+ * LCR!=0xBF (some docs say =0), FCTR[6]=1, XR16C85x
  */
 #define UART_EMSR	7	/* Extended Mode Select Register */
 #define UART_EMSR_FIFO_COUNT	0x01  /* Rx/Tx select */
-- 
1.7.7.3

--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@...r.kernel.org
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/

Powered by blists - more mailing lists

Powered by Openwall GNU/*/Linux Powered by OpenVZ