很不稳定，经常“掉线”。。。

mtpfs是从debian sid 源里安装的
$ aptitude show mtpfs
软件包：mtpfs
新: 是
状态: 已安装
自动安装: 否
版本号：1.1-4.1
优先级：可选
部分：utils
维护者：Chris Lamb <[email protected]>
体系：amd64
未压缩尺寸：36.9 k
依赖于: libc6 (>= 2.2.5), libfuse2 (>= 2.8.1), libglib2.0-0 (>= 2.31.8),
libid3tag0 (>= 0.15.1b), libmad0 (>= 0.15.1b-3), libmtp9 (>= 1.1.0),
libusb-1.0-0 (>= 2:1.0.8), zlib1g (>= 1:1.1.4), fuse
描述：FUSE filesystem for Media Transfer Protocol devices
MTPfs is a FUSE filesystem that supports reading and writing from MTP (Media
Transfer Protocol) devices, such as MP3 players, video players or digital
cameras.
In addition to revealing media files on the connected device, MTPfs exposes a
virtual directory called "/Playlists" which contains the device's playlists as
m3u files.
主页：http://www.adebenham.com/mtpfs/I