Here are the last lines of log. (I think that error it's only that it's trying to detect the SD card, which the PRS-300 doesn't have).
Devices possibly connected: PRS-300/505 Device Interface,
Trying to open PRS-300/505 Device Interface ... Unable to mount card (Error code: 1)
OK
Main memory: '/media/READER/'
Total space: (464928768L, 0, 0)
OK, your new version works perfect on my PRS-300.
Here are the last lines of log. (I think that error it's only that it's trying to detect the SD card, which the PRS-300 doesn't have).
Devices possibly connected: PRS-300/505 Device Interface,
Trying to open PRS-300/505 Device Interface ... Unable to mount card (Error code: 1)
OK
Main memory: '/media/READER/'
Total space: (464928768L, 0, 0)