ML2.0有没有提供联接数码相机的PTP程序?
如题，未找到联接相机的应用程序，求教。 ML2.0已经自带了gphoto，运行env LANG=C gphoto2 --debug -P一般用户不能下载：
...
1.880340 gphoto2-port(2): Opening USB port...
1.881126 gphoto2-port(0): Could not query kernel driver of device.
1.881674 gphoto2-port(0): Could not claim interface 0 (Operation not permitted). Make sure no other program or kernel module (such as sdc2xx, stv680, spca50x) is using the device and you have read/write access to the device. <-----------------------
1.882691 context(0): An error occurred in the io-library ('Could not claim the USB device'): Could not claim interface 0 (Operation not permitted). Make sure no other program or kernel module (such as sdc2xx, stv680, spca50x) is using the device and you have read/write access to the device.
但是root确可以,那里的设置不对?
1.843730 gphoto2-port(2): Opening USB port...
1.844475 gphoto2-port(0): Could not query kernel driver of device.
1.916192 gphoto2-port(2): Setting timeout to 8000 millisecond(s)... <---
1.919492 ptp(2): PTP: Opening session
1.919936 gphoto2-port(2): Writing 16=0x10 byte(s) to port...
1.920406 gphoto2-port(3): Hexdump of 16 = 0x10 bytes follows:
000010 00 00 00 01 00 02 10-00 00 00 00 01 00 00 00
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