| 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
| ||
|
Message-Id: <f18aa3ab2fb1182c96ecfe46551cd9c0b5787baf.1483422329.git.baolin.wang@linaro.org>
Date: Tue, 3 Jan 2017 13:50:54 +0800
From: Baolin Wang <baolin.wang@...aro.org>
To: myungjoo.ham@...sung.com, cw00.choi@...sung.com
Cc: linux-kernel@...r.kernel.org, linaro-kernel@...ts.linaro.org,
baolin.wang@...aro.org, broonie@...nel.org, neilb@...e.com
Subject: [PATCH] extcon: Add documentation for EXTCON_CHG_USB_SLOW/FAST
Currently there are no documentation for EXTCON_CHG_USB_SLOW/FAST
charger connector. These names don't mean much and no guide to tell
users how to use it, thus try to add documentation to make them clear.
Suggested-by: NeilBrown <neilb@...e.com>
Signed-off-by: Baolin Wang <baolin.wang@...aro.org>
---
include/linux/extcon.h | 4 ++++
1 file changed, 4 insertions(+)
diff --git a/include/linux/extcon.h b/include/linux/extcon.h
index 0020123..ceec1f0 100644
--- a/include/linux/extcon.h
+++ b/include/linux/extcon.h
@@ -53,6 +53,10 @@
* the USB connector, which means EXTCON_CHG_USB_SDP should always
* appear together with EXTCON_USB. The same as ACA charger connector,
* EXTCON_CHG_USB_ACA would normally appear with EXTCON_USB_HOST.
+ *
+ * A cable of type EXTCON_CHG_USB_SLOW can provide at least 500mA of
+ * current at 5V. A cable of type EXTCON_CHG_USB_FAST can provide at
+ * least 1A of current at 5V.
*/
#define EXTCON_CHG_USB_SDP 5 /* Standard Downstream Port */
#define EXTCON_CHG_USB_DCP 6 /* Dedicated Charging Port */
--
1.7.9.5
Powered by blists - more mailing lists