Re: LibFTDI/LibUSB 1.0 and Asyncrhonous I/O on FreeBSD
On Tue, Jul 23, 2013 at 9:03 PM, Hans Petter Selasky wrote: > On 07/23/13 20:10, CeDeROM wrote: >> question is it possible to use this Asynchronous I/O with FreeBSD >> implementation of LibUSB, or more specifically is it possible to use >> LibFTDI 1.0 to improve speed of my driver for FT2232 chip? :-) > > Hi, > It is implemented and should work! Please note that you should not mix > synchronous and asynchronous requests, with exception of control transfers. > If you are programming a bulk endpoint, use either all synchronous or all > asynchronous. > --HPS Wow! Good news! Thank you Hans!! :-) -- CeDeROM, SQ7MHZ, http://www.tomek.cedro.info ___ freebsd-usb@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-usb To unsubscribe, send any mail to "freebsd-usb-unsubscr...@freebsd.org"
Re: LibFTDI/LibUSB 1.0 and Asyncrhonous I/O on FreeBSD
On 07/23/13 20:10, CeDeROM wrote: Hello :-) LibUSB 1.0 introduced Asyncrhonous I/O [1] which in conjuction with LibFTDI 1.0 [2] gives significant performance improvement on FT2232* based chips used in various UART/JTAG/SWD interfaces. I am working on LibSWD [3] and would like to use this Asyncrhonous I/O on my FreeBSD box. I know there is an internal BSD implementation of LibUSB, so my question is it possible to use this Asynchronous I/O with FreeBSD implementation of LibUSB, or more specifically is it possible to use LibFTDI 1.0 to improve speed of my driver for FT2232 chip? :-) Any hints appreciated! :-) Tomek [1] http://www.libusb.org/wiki/libusb-1.0 [2] http://www.intra2net.com/en/developer/libftdi/ [3] http://libswd.sf.net Hi, It is implemented and should work! Please note that you should not mix synchronous and asynchronous requests, with exception of control transfers. If you are programming a bulk endpoint, use either all synchronous or all asynchronous. --HPS ___ freebsd-usb@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-usb To unsubscribe, send any mail to "freebsd-usb-unsubscr...@freebsd.org"
LibFTDI/LibUSB 1.0 and Asyncrhonous I/O on FreeBSD
Hello :-) LibUSB 1.0 introduced Asyncrhonous I/O [1] which in conjuction with LibFTDI 1.0 [2] gives significant performance improvement on FT2232* based chips used in various UART/JTAG/SWD interfaces. I am working on LibSWD [3] and would like to use this Asyncrhonous I/O on my FreeBSD box. I know there is an internal BSD implementation of LibUSB, so my question is it possible to use this Asynchronous I/O with FreeBSD implementation of LibUSB, or more specifically is it possible to use LibFTDI 1.0 to improve speed of my driver for FT2232 chip? :-) Any hints appreciated! :-) Tomek [1] http://www.libusb.org/wiki/libusb-1.0 [2] http://www.intra2net.com/en/developer/libftdi/ [3] http://libswd.sf.net -- CeDeROM, SQ7MHZ, http://www.tomek.cedro.info ___ freebsd-usb@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-usb To unsubscribe, send any mail to "freebsd-usb-unsubscr...@freebsd.org"
