adfExplorer (version 2.0.3)

device_type: Obtain information about an adf_device connection

Description

A collection of functions to retrieve information about the virtual device, or any volume (file system) available on the device. See examples for usage and results.

Usage

device_type(dev, ...)
# S3 method for adf_device
device_type(dev, ...)
device_capacity(dev, ...)
# S3 method for adf_device
device_capacity(dev, ...)
volume_capacity(dev, ...)
# S3 method for adf_device
volume_capacity(dev, vol = 0L, ...)
volume_name(dev, ...)
volume_name(dev, ...) <- value
# S3 method for adf_device
volume_name(dev, vol = 0L, ...)
# S3 method for adf_device
volume_name(dev, vol = 0L, ...) <- value
n_volumes(dev, ...)
# S3 method for adf_device
n_volumes(dev, ...)
bytes_free(dev, ...)
# S3 method for adf_device
bytes_free(dev, vol = 0L, ...)
is_bootable(dev, ...)
# S3 method for adf_device
is_bootable(dev, vol = 0L, ...)
is_fast_file_system(dev, ...)
# S3 method for adf_device
is_fast_file_system(dev, vol = 0L, ...)
is_international(dev, ...)
# S3 method for adf_device
is_international(dev, vol = 0L, ...)
is_dircache(dev, ...)
# S3 method for adf_device
is_dircache(dev, vol = 0L, ...)
is_write_protected(dev, ...)
# S3 method for adf_device
is_write_protected(dev, ...)

Value

Returns the requested information, or an updated copy of dev in case of an assign operation (<-).

Arguments

dev

The virtual adf device for which information needs to be obtained. It should be of class adf_device which can be created with create_adf_device() or connect_adf().

...

Ignored

vol

Volume index number on the device starting at 0. Default is 0. Note that floppy disks can only have 1 volume installed.

value

Replacement value. In case of volume_name() it can be used to assign a new name to the volume.

Author

Pepijn de Vries

Examples

## Open virtual device to demonstrate methods
my_device <- demo_adf(write_protected = FALSE)

device_type(my_device)

device_capacity(my_device) # in bytes

volume_capacity(my_device) # in bytes

n_volumes(my_device) # number of volumes available on device

volume_name(my_device) # name of the volume

volume_name(my_device) <- "new_name" # rename the volume

bytes_free(my_device) # bytes available for writing

is_bootable(my_device) # tests if device is potentially bootable

is_fast_file_system(my_device) # tests if volume uses FFS

is_international(my_device) # tests if file system uses intl mode

is_dircache(my_device) # tests if file system uses dir caching

is_write_protected(my_device) # tests if device is protected against writing

close(my_device)