[Ifp-driver-common] Be carefull about disconnection problems

[Vincent95 <vin...@ti...>]

I just wanted to relate what I just encountered when trying to use my brand 
new IFP-190TC with IFP-line to prevent some people from investigating on a 
wrong way like I did ! As I was trying to use some commands (ifp-line last 
release 0.2.4.5 and libusb without patch), I had random self disconnection 
issues (player display leaving USB mode). The reading of several posts in 
this lists (particularly "disconnecting strait away" and some others) first 
made me think that my system (Mandrake Linux 9.2 with Kernel 2.4.22) was 
subjected (in kernel or libusb libraries ? I'm a Linux newbee as well as PC 
software newbee...) to an already noticed bug. I was first really thinking 
about software related problems because I had successfully tried to connect 
the player to a Windows 2000 installed PC. Furthermore, my problem did not 
appear to be a connector problem.... however it was one ! I began 
understanding the problem when even when using windows (xp this time but it 
does not matter) the device disconnected itself during the driver 
installation (with the happy things that it causes on windows) even when not 
moving it.

Therefore that I just wanted to highlight is that even if I agree about the 
lot of advantages and features that the IFP100 series have, the tiny USB 
connector present on them has a very bad quality ! :-(  I checked that it is 
correctly soldered inside and not dammaged. So I am pretty sure that a lot of 
peoeple have experienced the same problem as me because even with a brand new 
and not dammaged device I have now to hold the player and its plugged 
connector (applying a slight twisting constraint on it) to get a realiable 
connection. This could lead to a lot of misinterpretations ! That's why if 
anyone is subjected to self disconnection problems, I suggest him to start 
first by checking the easiest thing to check: the connector ;-)