Does Linux provide an elegant and/or standard way of logging communication with devices that manage buffers and that can help me improve code like: $ cat drivers/usb/host/fotg210-hcd.c ... temp = snprintf(next, size, "\n\t%p%c%s len=%d %08x urb %p", td, mark, ({ char *tmp; switch ((scratch>>8)&0x03) { case 0: tmp = "out"; break; case 1: tmp = "in"; break; case 2: tmp = "setup"; break; default: tmp = "?"; break; } tmp; }), (scratch >> 16) & 0x7fff, scratch, td->urb); -- Peter