Re: [linux-usb-devel] usb bandwidth problem

2004-09-22 Thread Manoj Bhatta
--- Alan Stern <[EMAIL PROTECTED]> wrote: > On Tue, 21 Sep 2004, Manoj Bhatta wrote: > > > Sorry for late reply . let me remind you about my > > driver . This is USB 1.1 device with isoc endpoint > of > > 840 bytes. i am trying to read through isoc by >

Re: [linux-usb-devel] usb bandwidth problem

2004-09-21 Thread Manoj Bhatta
--- Alan Stern <[EMAIL PROTECTED]> wrote: > On Sun, 12 Sep 2004, Manoj Bhatta wrote: > > > > As for why the transfers take 600 ms instead of > 200 > > > ms... I don't know. > > > > When i debugs , i find my each URB status is still > in

Re: [linux-usb-devel] usb bandwidth problem

2004-09-12 Thread Manoj Bhatta
--- Alan Stern <[EMAIL PROTECTED]> wrote: > On Sat, 11 Sep 2004, Manoj Bhatta wrote: > > > Hi , > > > > My USB 1.1 Full Speed (12mbps) device , which is > > having one isoc endpoint of 840 bytes when tries > to > > read data through the isoc

[linux-usb-devel] usb bandwidth problem

2004-09-11 Thread Manoj Bhatta
Hi , My USB 1.1 Full Speed (12mbps) device , which is having one isoc endpoint of 840 bytes when tries to read data through the isoc endpoint by making 20 URBs , each URB having 840*10 (10 frames) bytes and it takes more time to read data from device almost 600millisec . How can i overcome

[linux-usb-devel] multiple device support for driver

2004-09-06 Thread Manoj Bhatta
Hi List , How USB driver can support multiple device at a time ? how i can use it from user level . my USB device is USB 1.1 specific and i am using USB 1.1 4 port hub . Thanks Manoj __ Do You Yahoo!? Tired of spam? Yahoo! Mail has the best spam

[linux-usb-devel] iso transfer problem

2004-08-23 Thread Manoj Bhatta
Hi list , I have one full speed usb 1.1 specific device .Which is having iso OUT endpoint of packet length 840 . I try to read data from my device(fingerprint scanner ) through iso read. But i get data by using iso transfer but all data are not actual data which i am able to see at user level .i

[linux-usb-devel] bulk timeout on ep1in

2004-08-09 Thread Manoj Bhatta
Hi , When i try to read data from my device through bulk in end point , it sends me error messages "Connection timed out". and my kernel message is usb 1-1: bulk timeout on ep1in " . Why it rerurns this type of messages ? I find that "HCD may return -ETIMEDOUT for other reasons" in core/mess

[linux-usb-devel] device in infinite loop after firmware down load

2004-08-04 Thread Manoj Bhatta
Hi , I download firmware to my device .But device LED glows for all time , when i do insmod . I found that it calls all finctions init, probe,deregister,disconnect continously . I downloaded firmware after checking vendorID and ProductID . Some messages tells: updfstab: numerical sysctl 1 23

[linux-usb-devel] load_firmware in probe()

2004-08-03 Thread Manoj Bhatta
Hi , How will i call my load_firmware() in probe , so that my device will "re-enumerate" as my purpose device. Form the discussion i found that we can't call usb_set_configuration() in _probe(). Can i call usb_reset_device() after load_firmware() ? But if i use and my h/w does not respond as

[linux-usb-devel] how to download ezusb firmware

2004-07-13 Thread Manoj Bhatta
I have one ezusb device which is of AN2131Q . How can i download firmware to my device. Will it be by using fxload tool . if i use fxload tool what could be my firmware(.hex file) . And in this case always end user has to load firmware whenever device is connected. is it true ? if i want to wr

[linux-usb-devel] ez-usb for linux

2004-07-10 Thread Manoj Bhatta
Dear All I came to know that AnchorChips (now owned by Cypress) has microcontroller that has direct hardware support to run USB 1.1 devices. People call it as ez-usb . Am i right ? How i will know that my usb device is ez-usb device? is there any way to know this? What is ez-usb device driver

[linux-usb-devel] Best kernel for USB Driver Development

2004-07-08 Thread Manoj Bhatta
Dear List I want to write a USB driver which is USB 1.1 device . Can any one tell me which kernel of 2.6 best support for this . I want to develop on 2.6 kernel . but i am not sure which kernel verion (like 2.6.4 or 2.6.6 ) i have to use . Thanks Manoj _

[linux-usb-devel] 2.6.3 kernel /proc/bus/usb/device problem

2004-07-06 Thread Manoj Bhatta
Dear All I am newbie to usb . I configured 2.6.3 kernel with usb support but as a module with usbdev filesystem in-build. when i tries to get indormation of /proc/bus/usb/devices it found none. What could be the problem . But in my system 2.4 kernel /proc/bus/usb/devices having info . I d