On Thu, 2009-07-16 at 10:44 +0200, Till Kamppeter wrote: > So we need a utility written in C which can poll the printer's device ID > with both libusb and usblp methods, so that it returns the device ID > independent whether the device was discovered via low-level USB or > through the usblp kernel module. It should do nothing more than output > "ID_IEEE1284=<device ID>" on stdout.
No, I think this is wrong. Firstly: do we actually need it to fetch the Device ID using the usblp ioctl() method at all? I think it's fine to require that the CUPS usb backend uses libusb. Secondly, it must do more than just collect the Device ID: it must also decide whether this matches any existing queue. Otherwise, we'll *always* end up invoking Python. If a queue needs to be added, enabled, or disabled, then it would need to execve() the Python script to do that. (In fact, enable/disable are simple enough that it could do that without external help.) Tim. */
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