Hello, sorry I will try to give you more detailed informations: I have an Atmel AT91SAM9260 with an usb-host and usb device port. I plug in my usb wlan stick in the usb host port. Then I establish a connection to a router. The ifplugd recognizes a connection. Then i start the udhcpc ( "udhcpc --interface=wlan0 --now -s /etc/init.d/simple.script"). A valid ip address is available. No I connect my host (PC) with the Atmel through the usb device port. [I´m using gadgetfs] Enumeration is successful. I want to use 2 Bulk endpoints for receiving/sending data. The problem is, that I can´t open /dev/ep1, which is the usb endpoint for receiving data from the host. ernno = Device or resource busy. If i kill udhcpc all works fine ? Thank you
>>> Denys Vlasenko <[EMAIL PROTECTED]> 25.11.2008 11:56 >>> On Tuesday 25 November 2008 08:33, Manuel Sahm wrote: > I`m using the AT91SAM9260 ARM9 microcontroller with linux kernel 2.6.27. > For the usb device port I use gadgetfs. > > My dhcp client program is udhcpc. > > I have two questions: > > 1.) > I start the udhcpc when I recognize a connection with the tool ifpludg. Then I make a system call: > "udhcpc --interface=wlan0 --now --quit -s /etc/init.d/simple.script" > Is it a problem to use the parameter "--quit" concerning the lease time ? > I have to use the paramter because of a problem with my usb device ??? (look at question 2.) Instead of adding --quit you need to look into the problem. > 2.) > I plug in my usb wlan stick in my usb host port - enumeration is successful. > I start udhcpc (without the --quit paramter) - Request is successful - got ip address - process udhcpc is running in background (daemon ?!). > Now I insert my usb device cable and now I am not abel to open the EP1 ? You insert what? Above you said you already detected the connection using ifplugd. I'm confused. I'm also confused by "not abel to open the EP1". what is "EP1"? > If I kill udhcpc, all works fine. > > Any ideas ? Write up more coherent problem description. -- vda
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