nusb(4): minor man page corrections
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@ -48,7 +48,7 @@ upon attachment of the device to the bus. All drivers except
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take the decimal usb
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.I devid
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of the device they should handle as ther last argument. A
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drivers instance handles only one device at a time.
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driver's instance handles only one device at a time.
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.PP
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Drivers that provide file systems make them available as shares under
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.B /shr
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@ -65,9 +65,9 @@ Options
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.B \-d
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and
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.B \-D
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present on most drivers trigger debug diagnostics and
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file system debugging diagnostics.
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Repeating any one of these may increase verbosity.
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trigger debug diagnostics and file system debugging
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diagnostics for most drivers. Repeating any one of these may
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increase verbosity.
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.SS Hubs
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.I Usbd
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enumerates the tree of USB hubs and configures the device on
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@ -75,7 +75,7 @@ attachment. It provides a filesystem with the the file
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.B usbevent
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(usualy seen as
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.BR /dev/usbevent )
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wich when read, returns a 5 column space separated line of
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which, when read, returns a 5 column, space separated line of
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text, one for each event. The columns are:
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.B attach
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or
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@ -109,11 +109,11 @@ The option
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.B \-a
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accelerates the mouse to level
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.I n
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(similar to the kernel mouse driver acceleration).
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(similar to the kernel's mouse driver acceleration).
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.SS Disks
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.I Disk
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configures and manages USB mass storage devices. It
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provides a file system (usually seen at
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provides a file system (usually seen under
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.BR /dev )
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that includes one directory per storage device, named
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.BI sdU N . M
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@ -137,28 +137,26 @@ The
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file supplies the device geometry and partitions when read.
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.SS Serial and JTAG ports
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.I Serial
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provides a file system (usually seen at
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provides a file system (usually seen under
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.BR /dev )
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that includes two files,
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.BI eiaU N ,
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that includes one directory per USB serial port, named
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.BI eiaU N
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or
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.BI eiaU N . M.
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In this directory there are two files,
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.BR eiaU ,
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similar to
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.BI eia N
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in
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.IR uart (3)
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but where
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.I N
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is the
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.I devid
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or
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.IR devid . lun,
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.IR uart (3),
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and
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.BI eiaU N ctl,
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.BR eiaUctl ,
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which admits writes in the same format as
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.BI eia N ctl
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in
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.IR uart (3).
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Reading from
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.BI eiaU N ctl
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.B eiaUctl
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gives the serial port's settings in the same format as
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.BI eia N status
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in
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@ -168,24 +166,19 @@ Options are similar to those of
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.PP
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JTAG ports are similar
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but the files are named
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.BI jtag N
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.B jtag
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and
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.BI jtag N ctl .
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.BR jtagctl .
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.
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.SS Audio devices
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.I Audio
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configures and manages a USB audio device.
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It implements a file system, (normally seen at
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It implements a file system, (normally seen under
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.BI /dev )
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containing files
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containing the files
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.BR volume
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and
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.BR audio .
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.SS Ptp devices
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.I Ptp
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supports PTP (picture transfer protocol) devices like cameras.
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The filesystem can be accessed under
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.BI /shr/sdU devid .0 .
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.SH SOURCE
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.B /sys/src/cmd/nusb
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.SH "SEE ALSO"
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@ -198,7 +191,7 @@ The filesystem can be accessed under
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.IR kbdfs (8)
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.SH BUGS
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The various device drivers are generic USB drivers and
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may work only for certain devices on each class.
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may work only for certain devices of each class.
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.PP
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USB ATA storage devices are not supported.
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.PP
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@ -207,6 +200,6 @@ and control of the
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.B dcd
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and
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.B dsr
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signals and some of the extra features are unimplemented.
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signals and some of the extra features are not implemented.
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For Ftdi, only the Sheevaplug and Guruplug have been tried.
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There is support for the EHCI debug port, but it loses bytes.
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