OK, thank you for your answer. Sorry for reporting this late. I will send mails to mailing list too. I don't know which device is RTL8187L but this device definitely isn't RTL8187B because it doesn't use RTL8187B routines and field rtl8187_priv.is_rtl8187b is FALSE. I am using MANAGED BSS STATION interface for device, but I also tried MONITOR interface to try to capture beacons from AP on any channel. It was the same, I can't read anything from 0x81 endpoint because I am always getting NAK packets. If I am not mistaken endpoint 2 is used for sending and 0x81 for receiving, but enumeration shows there is endpoint 3 also. Do you remember what is it used for? I again inspected rtl8187_start() routine and I am now inspecting rtl8187_probe() again but it is much bigger and I will need more time. Is the rtl8187_probe() crucial for initializing device or just for getting device information and allocating resources? I mean, will some false bits when writing to endpoint 0 cause the device to stop responding in this routine? Thanks, Nikola On Thu, Jan 26, 2012 at 7:49 PM, Larry Finger <Larry.Finger@xxxxxxxxxxxx> wrote: > > On 01/26/2012 11:37 AM, Nikola Gacic wrote: >> >> Hello Mr. Finger, >> >> I don't know if this is the right way for contacting you but I couldn't >> find the other way. >> Firstly, I want to say that I am student at School of electrical >> Engineering in Belgrade and I am working on some embedded project where I tried >> to use you RTL8187 Linux driver to communicate with PIC32 microcontroller over USB. >> I would appreciate any help with my problem. If you could spare some time >> to read this it would be great. I have several questions. Initialization worked >> fine I think (I get ACK packets), but when I try to finally send IN packet to >> endpoint 0x81 I get NAK packets all the time! >> I checked code in microcontroller several times and, of course, maybe error >> could be somewhere in initialization, but would that block my IN packets to >> device? I know that PIC32 cannot work in high-speed mode, only in full-speed, >> but in the datasheet for this dongle it says it can work in full-speed. So I >> want to know does USB card set its speed to full-speed automatically? >> I think my understanding of driver code is good so you can give me some >> general guidelines regarding initialization if you don't want to go to >> details.Thank you in advance. > > > Contacting me is OK, but all communication should also be Cc'd to the linux-wireless mailing list. > > Could you please give me some more details? Is this setup as an ad-hoc wireless connection? I know that rtl8187 does not work in AP mode, but I'm not sure about ad-hoc mode, and I am unable to test that at the moment. > > Which device are you using - RTL8187L, or RTL8187B? The USB ID should tell that. > > Yes, the device will work with USB1.1 hardware, and it might even work with USB1.0, but I have never tested that. > > Larry > > > > > > > > > > > -- 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
