tree 9623d639036fb9d9cc02d72cf2f2517eaf0c941c
parent aeacd252676fffa9eb8a5dc50f54b923855bd5b2
author Igor Kononenko <i.kononenko@yadro.com> 1600171774 +0300
committer Igor Kononenko <i.kononenko@yadro.com> 1600767803 +0300

usb-ctrl: adds to configure the usb interface type

Implementation of adjust interface type of inserting usb-gadget:

```usb-ctrl insert <name> <file> [<type=usb|usb-ro|hdd|cdrom>]```

* usb     - RW, Removable USB-flash
* usb-ro  - RO, USB-flash
* hdd     - RW, USB-HDD
* cdrom   - RO, Removable USB-CDROM

If type not specified or illegal then using 'usb-ro' as default

Tested: calling `usb-ctrl insert` with each posible value
(usb|usb-ro|hdd|cdrom); additionally been call with empty value and
with invalid value 'err_type':

* ```
root@:~# usb-ctrl insert usb0 /dev/nbd0 usb

root@:~# cat /sys/.../mass-storage/....usb0/lun.0/cdrom
0
root@:~# cat /sys/.../mass-storage/....usb0/lun.0/ro
0
root@:~# cat /sys/.../mass-storage/....usb0/lun.0/removable
1

root@:~# usb-ctrl insert usb0 /dev/nbd0 usb-ro

root@:~# cat /sys/.../mass-storage/....usb0/lun.0/cdrom
0
root@:~# cat /sys/.../mass-storage/....usb0/lun.0/ro
1
root@:~# cat /sys/.../mass-storage/....usb0/lun.0/removable
1

root@:~# usb-ctrl insert usb0 /dev/nbd0 hdd

root@:~# cat /sys/.../mass-storage/....usb0/lun.0/cdrom
0
root@:~# cat /sys/.../mass-storage/....usb0/lun.0/ro
0
root@:~# cat /sys/.../mass-storage/....usb0/lun.0/removable
0

root@:~# usb-ctrl insert usb0 /dev/nbd0 cdrom

root@:~# cat /sys/.../mass-storage/....usb0/lun.0/cdrom
1
root@:~# cat /sys/.../mass-storage/....usb0/lun.0/ro
1
root@:~# cat /sys/.../mass-storage/....usb0/lun.0/removable
1

root@:~# usb-ctrl insert usb0 /dev/nbd0
No mass-storage interface type specified or illegal
Configuring interface type to 'usb-ro'

root@:~# cat /sys/.../mass-storage/....usb0/lun.0/cdrom
0
root@:~# cat /sys/.../mass-storage/....usb0/lun.0/ro
1
root@:~# cat /sys/.../mass-storage/....usb0/lun.0/removable
1

root@:~# usb-ctrl insert usb0 /dev/nbd0 err_type
No mass-storage interface type specified or illegal
Configuring interface type to 'usb-ro'

root@:~# cat /sys/.../mass-storage/....usb0/lun.0/cdrom
0
root@:~# cat /sys/.../mass-storage/....usb0/lun.0/ro
1
root@:~# cat /sys/.../mass-storage/....usb0/lun.0/removable
1
```

Signed-off-by: Igor Kononenko <i.kononenko@yadro.com>
Change-Id: I46155e28ec7a441863ce86f425a46ac1297444ed