On 03-Apr-2002 Poul-Henning Kamp wrote: > In message <[EMAIL PROTECTED]>, "Kreider, Carl" > write > s: >> >>I am working on an embedded project running FreeBSD, and my driver >>for our custom card needs to load an FPGA with code. I know I can >>compile the code in as data, but for ease of development, I would >>rather fetch the FPGA code from a file. With a driver in kernel >>space. Really. >> >>Can it be done? If so, how? open() and read() are obviously in libc >>which rules them out. Do I have to write my own in assembler? > > Don't even think about it. > > At the time your driver is probed/attached, there is no filesystems > mounted yet. > > Best suggestion is to use an ioctl to download the data from > userland.
Or load the firmware using kldload or from the loader using a type string similar to the way we do MFS root filesystems. -- John Baldwin <[EMAIL PROTECTED]> <>< http://www.FreeBSD.org/~jhb/ "Power Users Use the Power to Serve!" - http://www.FreeBSD.org/ To Unsubscribe: send mail to [EMAIL PROTECTED] with "unsubscribe freebsd-hackers" in the body of the message
