Subbrathnam, Swaminathan wrote: > Steve/BJ, > > Can you provide more details as to the issue you have reported. What > is the throughput you are seeing and under what configuration. There > was a new update that went out as I know of on DM355 that should roll > in the patch45 changes on DM644x w.r.t USB. Probably it is yet to get > posted to the external site. > On the update site there is the release kernel with one patch (14).
I only have rough write numbers - since that is what we care about most - approximately 600KB/sec. The same memory stick on my laptop does > 4MB/sec. > I assume you are discussing the issue in the context of the DM355 GIT > kernel. > I'd love to port to the GIT kernel, but my understanding is that it's not ready for prime time yet (on the DM355). I've made quite a few changes to get my CMOS sensor and decoder working in the current Ti/MV kernel. If I'm wrong about the GIT kernel and it does everything that the MV kernel does - please let me know and I'll take a closer look. > regards > swami > ------------------------------------------------------------------------ > *From:* BJ Opp [EMAIL PROTECTED] > *Sent:* Wednesday, November 12, 2008 3:37 AM > *To:* Stephen Berry; [email protected]; > Subbrathnam, Swaminathan > *Subject:* RE: USB patches (patch level 14) for LSP 1_20 > > Steve, > > > > It seems you and I are chasing the same problems. I’m seeing pretty > horrid write speeds on USB and was getting ready to try and chase down > where they could be coming from so I second your question regarding > the patches. Has anybody seen/fixed this issue? > > > > BJ > > > > ------------------------------------------------------------------------ > > *From:* [EMAIL PROTECTED] > [mailto:[EMAIL PROTECTED] *On > Behalf Of *Stephen Berry > *Sent:* Tuesday, November 11, 2008 1:14 PM > *To:* [email protected]; [EMAIL PROTECTED] > *Subject:* USB patches (patch level 14) for LSP 1_20 > > > > > I'm running into a performance issue with using USB memory sticks - > namely very low write performance. I've recently ported to LSP 1_20 > (from the beta) and after searching the mailing list there seemed to > be some mention of a patch level 45 on the 6446 that would fix this > issue... > > But of course for the Dm355 distribution on the Ti update site, patch > level 14 is the current one. And to top it off, they don't apply > cleanly with quilt. > > So before I go through each patch individually I'd like to make sure > that these patches will help with my problem. Most of the comments > seem to be relating to OTG functionality - but the patch labeled > lsp_1_20_usb_intr_schedule_fix_014.patch - sounds like it could be > helpful. > > Any help is appreciated, > > Steve > -- Integral Design and Development 312 Great Rd, Littleton MA 01460 voice: 978 501 7658 fax: 603-679-3988 This e-mail and any files transmitted with it are confidential and intended solely for the use of the individual or entity to which they are addressed. If you have received this e-mail in error please notify the originator immediately. The addressee is formally notified hereby that this e-mail and any attachments are to be treated as confidential.
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