| Insert excerpt | ||||||
|---|---|---|---|---|---|---|
|
This object allows supported BrightSign players to expose a local file as a USB mass storage device when connected to a USB host port on another device (for example, a PC or television.) The host acts as if it is talking to a USB thumb drive or USB hard drive, but the reads and writes go to the specified local file on the BrightSign. It requires a file containing a filesystem. One way to make such a file is:
| Code Block |
|---|
dd if=/dev/zero of=/storage/sd/test.img bs=4k count=2k mkfs.vfat /storage/sd/test.img |
Normally the local file would be prepared beforehand with a filesystem offline (any method that captures a raw copy of a filesystem should work).
ifUsbFilesystem
Enable(filename As String) As Boolean
Expose an existing filesystem image as a USB mass storage device.
Disable() As Boolean
Remove an existing filesystem image as a USB mass storage device.
Examples
To create a filesystem (using the file from the example above):
| Code Block |
|---|
fs = CreateObject("roUsbFilesystem")
result = fs.Enable(
{filename: "SD:test.img"}
) |
The result is a boolean. A result of true means that the filesystem has been successfully created.
To remove a filesystem:
| Code Block |
|---|
result = fs.Disable() |