Hi, For testing USB HCD driver , there is a kernel mode driver "usbtest.c" , which comprises of 16 different tests.
I could get the first 2 tests. Test 1 - Simple non-queued bulk "Sink" (IN) I/O tests Test 2 - Simple non-queued bulk "Source" (OUT) I/O tests How does the Test 3 and Test 4 work.? Please tell how the "vary" paramter helps. Is it to vary the transfer_buffer_length in URB , in each iteration.by the number specified in parameter "vary". Can u please explain the use of "Scatter-Gather list". What i understand is that the URB->transfer_bufffer is divided in to a scatter list , which are pointers to buffer. This is "Scatter Gather DMA ", but the DMA controller should be supporting this. Can u please point out , how can a EHCI -HCD driver be divided into various modules .. like IRQ Handling, URB QUEING... ETC . Which modules in ehci-hcd does the above test affect. Thanks RAK ------------------------------------------------------- This SF.Net email is sponsored by xPML, a groundbreaking scripting language that extends applications into web and mobile media. Attend the live webcast and join the prime developer group breaking into this new coding territory! http://sel.as-us.falkag.net/sel?cmd=lnk&kid0944&bid$1720&dat1642 _______________________________________________ linux-usb-devel@lists.sourceforge.net To unsubscribe, use the last form field at: https://lists.sourceforge.net/lists/listinfo/linux-usb-devel
