The Ftape Installation and Usage Guide - Devices description
devfs
file system
The Linux kernel (since version 2.3.46) contains support for a virtual
file system called devfs which serves to auto-magically create
device nodes under `/dev/
' as needed. If the kernel supports
devfs
then ftape-4.04 registers a directory `/dev/ftape/
'
and subdirectories `/dev/ftape/0/
', `/dev/ftape/1/
',
`/dev/ftape/2/
' and `/dev/ftape/3/
'.
Using this naming scheme, `/dev/qft0
' becomes
`/dev/ftape/0/mt
', `/dev/zqft0
' becomes
`/dev/ftape/0/mtz
' and finally `/dev/rawft0
' becomes
`/dev/ftape/0/mtr
'. Non rewinding devices are indicated by the
suffix n
instead of the prefix n
, so
`/dev/nzqft2
' maps to `/dev/ftape/2/mtzn
'.
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