13 	Device	dev;  member
25 wren(Device dev)  in wren()  argument
30 		if(devcmp(dev, wrens[i].dev) == 0)  in wren()
32 	panic("can't find wren for %D", dev);  in wren()
37 wreninit(Device dev)  in wreninit()  argument
66 	w->dev = dev;  in wreninit()
74 wrenream(Device dev)  in wrenream()  argument
86 	w = wren(dev);  in wrenream()
107 wrencheck(Device dev)  in wrencheck()  argument
116 	if(wrenread(dev, wrensuper(dev), buf) || wrentag(buf, Tsuper, QPSUPER)  in wrencheck()
117 	|| wrenread(dev, wrenroot(dev), buf) || wrentag(buf, Tdir, QPROOT))  in wrencheck()
125 wrensize(Device dev)  in wrensize()  argument
127 	return wren(dev)->size / RBUFSIZE;  in wrensize()
131 wrensuper(Device dev)  in wrensuper()  argument
133 	USED(dev);  in wrensuper()
138 wrenroot(Device dev)  in wrenroot()  argument
140 	USED(dev);  in wrenroot()
145 wrenread(Device dev, long addr, void *b)  in wrenread()  argument
150 	w = wren(dev);  in wrenread()
161 wrenwrite(Device dev, long addr, void *b)  in wrenwrite()  argument
166 	w = wren(dev);  in wrenwrite()