Hi, I'm using Kernel 2.6.16 on PDA. It has an USB-slot/internal hub where I connect my WLAN adapter to. But kernel doesn't configure this adapter "usb 1-2: no configuration chosen from 1 choice".
There is a post from Alan Stern http://www.mail-archive.com/linux-usb-devel@lists.sourceforge.net/msg43480.html who suggests to do a "echo -n 1 /sys/bus/usb/devices/<x-x>/bConfigurationValue". I tried that trick, but I didn't get my WLAN adapter running with this. Instead I get an interesting kernel message (dmesg) : "usb 1-2: new config #1 exceeds power limit by 350mA". I guess, PDA's usb port doesn't supply more than 150mA. Am I right? Do I really need an external powered usb hub to get WLAN adapter (500mA MaxPower via lsusb -v) working? The rest of dmesg output: pxa27x-ohci pxa27x-ohci: PXA27x OHCI pxa27x-ohci pxa27x-ohci: new USB bus registered, assigned bus number 1 pxa27x-ohci pxa27x-ohci: irq 3, io mem 0x4c000000 usb usb1: configuration #1 chosen from 1 choice hub 1-0:1.0: USB hub found hub 1-0:1.0: 3 ports detected usb 1-2: new full speed USB device using pxa27x-ohci and address 2 usb 1-2: no configuration chosen from 1 choice at76_usbdfu: no version magic, tainting kernel. USB Device Firmware Upgrade (DFU) handler v0.14dev-static loading at76c503: no version magic, tainting kernel. Generic Atmel at76c503/at76c505 routines v0.14dev-static at76c503_rfmd: no version magic, tainting kernel. Atmel at76c503 (RFMD) Wireless LAN Driver v0.14dev-static loading usbcore: registered new driver at76c503-rfmd usb 1-2: new config #1 exceeds power limit by 350mA usb 1-2: reset full speed USB device using pxa27x-ohci and address 2 usb 1-2: device firmware changed usb 1-2: USB disconnect, address 2 at76c503-rfmd disconnected usb 1-2: new full speed USB device using pxa27x-ohci and address 3 usb 1-2: no configuration chosen from 1 choice ------------------------------------------------------------------------- Take Surveys. Earn Cash. Influence the Future of IT Join SourceForge.net's Techsay panel and you'll get the chance to share your opinions on IT & business topics through brief surveys -- and earn cash http://www.techsay.com/default.php?page=join.php&p=sourceforge&CID=DEVDEV _______________________________________________ linux-usb-devel@lists.sourceforge.net To unsubscribe, use the last form field at: https://lists.sourceforge.net/lists/listinfo/linux-usb-devel
