Has anyone use the zd1211 usb adapter with mini-itx board based on geforce 9300? I have been experience some annoying issues ever since I got this motherboard. The problem is that sometime the card just cannot be switched on. It complains about ioread32() error -110. And I have spent a few days and try a few different combination, and here is what I have found so far: 1, with 1 wifi adapter directly plugged into the board, the wifi adapter works fine most of the time (have seen a couple failure, but is hard to reproduce) 2. with 1 wifi adapter, plugged in through a USB hub, the driver complains ioread32 error. I've try 2 USB hubs: a cheap 4-port USB dongle and also the USB hubs built into my DELL monitor. Both showed the same problem. 3. If I plugged in 2 wifi adapters directly to the board, more than 50% of chance one of the wifi adapter would fail during the 'ifconifg up'. I tried to dig our more on this. I am using kernel 2.6.24-26 (ubuntu). I had turned on the debug message output and I have traced out that the failure was first detected in the zd_mac_open(). Probably around the call to zd_chip_switch_radio_on(). The error message is printed in the zd_usb_ioread16v(), and probably indicate the driver is experiencing a timeout while it is trying to read the register from the adapter. What exactly does this mean? Why adding a usb hub cause such a huge differnce? Has anyone experienced similar problem before? Any pointer that can help me solve this problem is appreciated. BTW, I never had this problem before when I was still using a regular HP desktop PC, even with the same version of kernel and same USB hub. I switched to mini-itx because I am building a small system. So if anyone is currently using this adapter with a mini-ITX board, please also let me know which model you use. TIA, Tsuwei -- To unsubscribe from this list: send the line "unsubscribe linux-wireless" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
