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Clarify that USB bus power consumption is measured in mA at 5V.

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MFC after:	2 weeks
Sponsored by:	The FreeBSD Foundation
This commit is contained in:
Edward Tomasz Napierala 2018-05-24 18:02:02 +00:00
parent 5328b11c95
commit 6ad033c2f1
Notes: svn2git 2020-12-20 02:59:44 +00:00 
svn path=/head/; revision=334173
2 changed files with 3 additions and 3 deletions
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4
share/man/man4/usb_template.4
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@ -23,7 +23,7 @@
.\" OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF .\" OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
.\" SUCH DAMAGE. .\" SUCH DAMAGE.
.\" .\"
.Dd May 23, 2018 .Dd May 24, 2018
.Dt USB_TEMPLATE 4 .Dt USB_TEMPLATE 4
.Os .Os
. .
@ -101,7 +101,7 @@ tunables:
Currently selected template. Currently selected template.
Set to -1 to make the device disappear from the USB host point of view. Set to -1 to make the device disappear from the USB host point of view.
.It Va hw.usb.template_power .It Va hw.usb.template_power
USB bus power consumption in mA. USB bus power consumption in mA at 5V.
Must be between 0 and 500. Must be between 0 and 500.
Setting to 0 marks the device as self-powered. Setting to 0 marks the device as self-powered.
Defaults to 500mA. Defaults to 500mA.

2
sys/dev/usb/template/usb_template.c
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@ -120,7 +120,7 @@ SYSCTL_NODE(_hw_usb, OID_AUTO, templates, CTLFLAG_RW, 0,
SYSCTL_PROC(_hw_usb, OID_AUTO, template_power, SYSCTL_PROC(_hw_usb, OID_AUTO, template_power,
CTLTYPE_INT | CTLFLAG_RWTUN | CTLFLAG_MPSAFE, CTLTYPE_INT | CTLFLAG_RWTUN | CTLFLAG_MPSAFE,
NULL, 0, sysctl_hw_usb_template_power, NULL, 0, sysctl_hw_usb_template_power,
"I", "USB bus power consumption in mA"); "I", "USB bus power consumption in mA at 5V");
static int usb_template_power = 500; /* 500mA */ static int usb_template_power = 500; /* 500mA */