Date: Mon, 22 May 2017 06:24:43 +0000 (UTC) From: Ngie Cooper <ngie@FreeBSD.org> To: src-committers@freebsd.org, svn-src-all@freebsd.org, svn-src-stable@freebsd.org, svn-src-stable-11@freebsd.org Subject: svn commit: r318624 - stable/11/share/man/man4 Message-ID: <201705220624.v4M6OhF4043128@repo.freebsd.org>
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Author: ngie Date: Mon May 22 06:24:43 2017 New Revision: 318624 URL: https://svnweb.freebsd.org/changeset/base/318624 Log: MFC r317594: usb(4): manpage cleanup 1. Wrap at <80 columns for readability when editing. Rewrap some lines prematurely wrapped to better fit in <80 columns and not waste vertical space. 2. Fix SEE ALSO sorting (sort by section first, then manpage name). 3. Tweak the compound device description slightly by adding soft stops via commas. Sponsored by Dell EMC Isilon Modified: stable/11/share/man/man4/usb.4 Directory Properties: stable/11/ (props changed) Modified: stable/11/share/man/man4/usb.4 ============================================================================== --- stable/11/share/man/man4/usb.4 Mon May 22 06:20:58 2017 (r318623) +++ stable/11/share/man/man4/usb.4 Mon May 22 06:24:43 2017 (r318624) @@ -24,7 +24,7 @@ .\" .\" $FreeBSD$ .\" -.Dd November 26, 2013 +.Dd April 29, 2017 .Dt USB 4 .Os .Sh NAME @@ -78,8 +78,7 @@ bus. .Pp The .Nm uhub -device will always be present as it is needed for the -root hub. +device will always be present as it is needed for the root hub. .Sh INTRODUCTION TO USB The .Tn USB @@ -94,38 +93,34 @@ The most common USB speeds are: Each .Tn USB has a USB controller that is the master of the bus. -The physical communication is simplex which means the host controller only communicates with one USB device at a time. +The physical communication is simplex which means the host controller only +communicates with one USB device at a time. .Pp There can be up to 127 devices connected to an USB HUB tree. -The addresses are assigned -dynamically by the host when each device is attached to the bus. +The addresses are assigned dynamically by the host when each device is +attached to the bus. .Pp Within each device there can be up to 16 endpoints. -Each endpoint -is individually addressed and the addresses are static. +Each endpoint is individually addressed and the addresses are static. Each of these endpoints will communicate in one of four different modes: .Em control , isochronous , bulk , or .Em interrupt . A device always has at least one endpoint. -This endpoint has address 0 and is a control -endpoint and is used to give commands to and extract basic data, -such as descriptors, from the device. +This endpoint has address 0 and is a control endpoint and is used to give +commands to and extract basic data, such as descriptors, from the device. Each endpoint, except the control endpoint, is unidirectional. .Pp The endpoints in a device are grouped into interfaces. -An interface is a logical unit within a device; e.g.\& -a compound device with both a keyboard and a trackball would present -one interface for each. -An interface can sometimes be set into different modes, -called alternate settings, which affects how it operates. -Different alternate settings can have different endpoints -within it. +An interface is a logical unit within a device, e.g., a compound device with +both a keyboard and a trackball, would present one interface for each. +An interface can sometimes be set into different modes, called alternate +settings, which affects how it operates. +Different alternate settings can have different endpoints within it. .Pp A device may operate in different configurations. -Depending on the -configuration, the device may present different sets of endpoints -and interfaces. +Depending on the configuration, the device may present different sets of +endpoints and interfaces. .Pp The bus enumeration of the .Tn USB @@ -144,7 +139,6 @@ specifications can be found at: .D1 Pa http://www.usb.org/developers/docs/ .Pp .Xr libusb 3 , -.Xr usbdi 9 , .Xr aue 4 , .Xr axe 4 , .Xr axge 4 , @@ -166,8 +160,9 @@ specifications can be found at: .Xr uplcom 4 , .Xr urio 4 , .Xr uvscom 4 , -.Xr usbconfig 8 , .Xr xhci 4 +.Xr usbconfig 8 , +.Xr usbdi 9 , .Sh STANDARDS The .Nm
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