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Clarify that USB bus power consumption is measured in mA at 5V.
MFC after: 2 weeks Sponsored by: The FreeBSD Foundation
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svn2git
2020-12-20 02:59:44 +00:00
svn path=/head/; revision=334173
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@ -23,7 +23,7 @@
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.\" OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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.\" SUCH DAMAGE.
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.\"
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.Dd May 23, 2018
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.Dd May 24, 2018
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.Dt USB_TEMPLATE 4
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.Os
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.
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@ -101,7 +101,7 @@ tunables:
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Currently selected template.
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Set to -1 to make the device disappear from the USB host point of view.
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.It Va hw.usb.template_power
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USB bus power consumption in mA.
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USB bus power consumption in mA at 5V.
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Must be between 0 and 500.
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Setting to 0 marks the device as self-powered.
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Defaults to 500mA.
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@ -120,7 +120,7 @@ SYSCTL_NODE(_hw_usb, OID_AUTO, templates, CTLFLAG_RW, 0,
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SYSCTL_PROC(_hw_usb, OID_AUTO, template_power,
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CTLTYPE_INT | CTLFLAG_RWTUN | CTLFLAG_MPSAFE,
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NULL, 0, sysctl_hw_usb_template_power,
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"I", "USB bus power consumption in mA");
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"I", "USB bus power consumption in mA at 5V");
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static int usb_template_power = 500; /* 500mA */
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