media-libs/libgphoto2-2.5.5-1-r1 and 2.5.7 fail to connect on reading bytes from control transfer on Canon EOS 20D and perhaps other models. gp_port_usb_msg_read/gp_context_errors on debug. Upstream patch on libusb1.c: http://sourceforge.net/p/gphoto/code/15384/ This applied fine to my localized 2.5.7-r1 copy and functionality was as expected. I did not test this on libgphoto2-2.5.5.1-r1, which if I recall caused the connection issues after upgrading from 2.5.4-r2. This recent upgrade to 2.5.7 made me seek upstream resolution as above since the issue wasn't corrected. Reproducible: Always Steps to Reproduce: 1.Turn connected USB camera on in mate 2.or gphoto2 --summary --debug 3. Actual Results: 1. No volume connection visible/made. 2. Initial errors in gp_ calls mentioned in description. Expected Results: Successful connection, volume showing.
please test with 2.5.8
