Using USB Diskette Devices

USB diskette devices appear as removable media devices like other USB devices. USB diskette devices are not managed by the fd (floppy) driver. Applications that issue ioctl(2) calls intended for the fd (native floppy) driver will fail. Applications that issue only read(2) and write(2) calls will succeed. Other applications, such as SunPCI and rmformat, will also succeed.

CDE's File Manager does not fully support USB diskettes at this time. However, you can open, rename, and format diskettes that contain a UFS file system from File Manager's Removable Media Manager. You can only open diskettes that contain a PCFS file system from the Removable Media Manager. If a diskette contains either type of file system, you can successfully drag and drop files between the diskette and File Manager.

Volume management (vold) sees the USB diskette device as a SCSI removable media device. Volume management makes the device available for access under the /rmdisk directory.

For more information on how to use USB diskette devices, see Chapter 17, Managing Removable Media (Overview).