Hi Swami,
I'm also into this method, as I cannot achieve the required throughput using USB serial gadget. Currently I'm having problem with the sample user space driver from Linux USB site. I already recompiled the EVM kernel(2.6.10) with gadget FS support and yet still I can't configure musb_hdrc using a user space driver. Does the Montavista 2.6.10 kernel already supports this feature ? In case anybody in here already done this method on DM6446, kindly shed some light on this matter ( a step by step procedure would be fine ). Regards. ----- Original Message ----- From: Subbrathnam, Swaminathan To: Nitin Joshi ; [email protected] Sent: Thursday, June 19, 2008 7:19 PM Subject: RE: USB Gadget Serial - Data rate? Nitin, Gadget Serial is typically used for console, slow speed serial applications and has restrictions from the perspective of max throughput that can be achieved. You can write your own application over GadgetFS. In this way you could achieve the required throughput as USB Gadget. Regards Swami PSP downloads at : http://software.ti.com/swcoe/intranet/reports/pds/PSP_releases.php Office : +91-80-25048629 ------------------------------------------------------------------------------ From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of Nitin Joshi Sent: Thursday, June 19, 2008 3:45 PM To: [email protected] Subject: USB Gadget Serial - Data rate? Hi all, We have a custom board containing DM6446 DSP, and we need to transfer the data over USB in both directions. Meaning, my PC application will act as HOST and DM6446 EVM configured as a Gadget Device. Initially HOST will send some configuration data which DM6446 has to receive and configure other peripherals say FPGA At the end of some operation, the hardware will store the huge data(around 2GB) into the available DDR2 memory, Which I need to transfer to host using USB2.0 I have 2 queries here 1) Which type of Gadget device should I use? I mean USB Gadget Ethernet / File backed storage/Serial 2) I tried to Configure EVM as Gadget Serial and the Data rate is < 1 MB which is worst for me. I have used default MVLinux401 came along with DVEVM. If I apply the latest LSP patch from TI, Will it make any difference in the performance? 3) Is there anybody who has used Gadget serial and what is the max data rate achieved? Need your support! Thanks and Regards Nitin Joshi DISCLAIMER: This message (including attachment if any) is confidential and may be privileged. If you have received this message by mistake please notify the sender by return e-mail and delete this message from your system. Any unauthorized use or dissemination of this message in whole or in part is strictly prohibited. E-mail may contain viruses. Before opening attachments please check them for viruses and defects. While MindTree Limited (MindTree) has put in place checks to minimize the risks, MindTree will not be responsible for any viruses or defects or any forwarded attachments emanating either from within MindTree or outside. Please note that e-mails are susceptible to change and MindTree shall not be liable for any improper, untimely or incomplete transmission. MindTree reserves the right to monitor and review the content of all messages sent to or from MindTree e-mail address. Messages sent to or from this e-mail address may be stored on the MindTree e-mail system or else where. ------------------------------------------------------------------------------ _______________________________________________ Davinci-linux-open-source mailing list [email protected] http://linux.davincidsp.com/mailman/listinfo/davinci-linux-open-source
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