Date: Tue, 03 Feb 2015 07:16:27 +0100 From: Hans Petter Selasky <hps@selasky.org> To: james <kqiu.star@gmail.com>, freebsd-arm@freebsd.org Subject: Re: isochronous transfer porting Message-ID: <54D067BB.9070503@selasky.org> In-Reply-To: <54D066A0.1090602@gmail.com> References: <54D066A0.1090602@gmail.com>
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On 02/03/15 07:11, james wrote: > HI > I am recently doing a project that needs support usb camera in RTEMS. > The platform is based on ARMv7, otg controller is EHCI compatible > > I am considering porting isochronous transfer in FreeBSD to RTEMS, > but not familiar with FreeBSD code yet, and I found that > Sebastian Huber has ported FreeBSD USB stack to RTEMS, but only support > MMC and usb mass storage now(I have supported usb mass storage host in > RTEMS). > > do you have any suggestions on this project? If porting from FreeBSD, > which point should > I start with?Does anyone have done this work before? > Thanks in advance Hi, You should probably update the USB code from FreeBSD 11-current. If mass storage is working isochronous transfers should work too. It should work more or less the same like before. --HPS
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