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Everything posted by Prabhat_Ranjan

  1. I have tested two Reliance Broadband card on offer right now for connectivity on Linux. I have tested this on Fedora 11 and it uses Linux 2.6.29 Kernel. 1. Huawei 1261 card - Works right away - once you insert it, it gets recognized as a USB device connected to one of the ports as a serial device. You can use normal RConnect package for Linux with slight modification for device name to make it work. On older version of Linux kernel, this may get recognized as a storage device and one may have to use usb_modeswitch to put it into modem mode. 2. LG LXU 800 - For this card, I had to insert usbserial module with vendor and device number as follows to get it to work. login as root and run #modprobe -r usbserial #modprobe usbserial vendor=0xeab product=0x9357 Now insert the device and look at the /var/log/messages file or use "dmesg" command to see, if it gets attached to a serial device.
  2. Connecting Huawei EC121 USB modem sold by Reliance is difficult to connect with the current Linux Kernel Versions (2.6.27). This is due to the fact that device has usb storage to store windows driver etc. as well as modem. Due to this Linux kernel drivers get confused. While Huawei seems to be working to get the appropriate modification in kernel drivers done, as of now it is not there. However, you can use 'usb_modeswitch' program to switch the device to modem mode. I have tested it on Fedora 9 and it seems to have worked reliably. I would update more info on this as and when i get them.
  3. Connecting Huawei Ec121 Usb Modem On Linux

    You have to edit /etc/usb_modeswitch.conf and add your device as target device. You may have to comment other devices and add the following: ################## DefaultVendor= 0x12d1; DefaultProduct= 0x1411 # choose one of these: ;DetachStorageOnly=1 HuaweiMode=1 ################### If it still does not find, use lsusb command to identify your device specification. Read the comments in the beginning of /etc/usb_modeswitch.conf file.
  4. Connecting Huawei Ec121 Usb Modem On Linux

    Once you install usb_modeswitch, you can use udev rules to automate the process of running it when you insert the device by having file like "70-huawei-ec121.rules" placed in /etc/udev/rules.d (for Fedora 9) containing: ACTION=="add", SUBSYSTEM=="usb", ATTRS{idVendor}=="12d1", ATTRS{idProduct}=="1411" RUN+="/bin/usb_modeswitch" here "/bin/usb_modeswtich" is the full pathename of usb_modeswtich. Change it if you install it somewhere else.
  5. Connecting Huawei Ec121 Usb Modem On Linux

    When rconnect for linux was released, MTU value was set to 284 for some reason. This is not very efficient and may give problem with some applications. Change this to 1500 - it is passed as option to 'pppd' command. You can check this by ifconfig command and see what MTU value it shows for ppp0 interface.
  6. RConnect & Linux

    I am trying to dig deeper in this problem and see if we can find a solution. I have two leads right now: 1. A report (unconfirmed) that it works on Novell Suse distribution. Trying to get more specific details. 2. This card uses Oxford Semiconductor OXCF950 UART with interface to PCMCIA or CF. As per the manufacturer's claim this is supposed to be compatible to 16C550 UART but I have found problems being faced by various products based on this in Linux support. SOme relevant links for the product details are as follows: http://www.ecplaza.net/tradeleads/seller/3...315_series.html 3. The part of the Kernel that handles this is Linux-2.6.17/drivers/serial/serial_cs.c This has patches related to Oxford Semiconductor device. As and when i make any progress, I would inform the Forum.
  7. RConnect & Linux

    Could you establish connection through ZTE MC315 in Linux? If yes, can you post any details since no other post i have come across has mentioned success with this. Thanks