int
loaddevconf(Dev *d, int n)
{
uchar *buf;
int nr;
int type;
if(n >= nelem(d->usb->conf)){
werrstr("loaddevconf: bug: out of configurations in device");
fprint(2, "%s: %r\n", argv0);
return -1;
}
buf = emallocz(Maxdevconf, 0);
type = Rd2h|Rstd|Rdev;
nr = usbcmd(d, type, Rgetdesc, Dconf<<8|n, 0, buf, Maxdevconf);
if(nr < Dconflen){
free(buf);
return -1;
}
if(d->usb->conf[n] == nil)
d->usb->conf[n] = emallocz(sizeof(Conf), 1);
nr = parseconf(d->usb, d->usb->conf[n], buf, nr);
free(buf);
return nr;
}
static void
parserule(const char *s, Rule * r)
{
r->prop = emallocz(128);
r->tags = emallocz(64);
sscanf(s, "%s %s %d %d", r->prop, r->tags, &r->isfloating, &r->hastitle);
}
Dev*
opendev(char *fn)
{
Dev *d;
int l;
if(access("/dev/usb", AEXIST) < 0 && bind("#u", "/dev", MBEFORE) < 0)
return nil;
d = emallocz(sizeof(Dev), 1);
incref(d);
l = strlen(fn);
d->dfd = -1;
/*
* +30 to allocate extra size to concat "/<epfilename>"
* we should probably remove that feature from the manual
* and from the code after checking out that nobody relies on
* that.
*/
d->dir = emallocz(l + 30, 0);
strcpy(d->dir, fn);
strcpy(d->dir+l, "/ctl");
d->cfd = open(d->dir, ORDWR|OCEXEC);
d->dir[l] = 0;
d->id = nameid(fn);
if(d->cfd < 0){
werrstr("can't open endpoint %s: %r", d->dir);
free(d->dir);
free(d);
return nil;
}
dprint(2, "%s: opendev %#p %s\n", argv0, d, fn);
return d;
}
PaqDir *
paqFile(char *name, Dir *dir)
{
int fd, n, nn, nb;
vlong tot;
uchar *block, *pointer;
ulong offset;
fd = open(name, OREAD);
if(fd < 0) {
warn("could not open file: %s: %r", name);
return nil;
}
block = emallocz(blocksize);
pointer = emallocz(blocksize);
nb = 0;
n = 0;
tot = 0;
for(;;) {
nn = read(fd, block+n, blocksize-n);
if(nn < 0) {
warn("read failed: %s: %r", name);
goto Err;
}
tot += nn;
if(nn == 0) {
if(n == 0)
break;
/* pad out last block */
memset(block+n, 0, blocksize-n);
nn = blocksize - n;
}
n += nn;
if(n < blocksize)
continue;
if(nb >= blocksize/OffsetSize) {
warn("file too big for blocksize: %s", name);
goto Err;
}
offset = writeBlock(block, DataBlock);
putl(pointer+nb*OffsetSize, offset);
nb++;
n = 0;
}
offset = writeBlock(pointer, PointerBlock);
close(fd);
free(pointer);
free(block);
dir->length = tot;
return paqDirAlloc(dir, offset);
Err:
close(fd);
free(pointer);
free(block);
return nil;
}
void
exclusions(void)
{
Biobuf *f;
int ni, nmaxi, ne, nmaxe;
char *line;
if(patternfile == nil)
return;
f = Bopen(patternfile, OREAD);
if(f == nil)
fatal("cannot open patternfile");
ni = 0;
nmaxi = 100;
include = emallocz(nmaxi*sizeof(*include));
include[0] = nil;
ne = 0;
nmaxe = 100;
exclude = emallocz(nmaxe*sizeof(*exclude));
exclude[0] = nil;
while(line = Brdline(f, '\n')){
line[Blinelen(f) - 1] = 0;
if(strlen(line) < 2 || line[1] != ' ')
continue;
switch(line[0]){
case '+':
if(ni+1 >= nmaxi){
nmaxi = 2*nmaxi;
include = realloc(include, nmaxi*sizeof(*include));
if(include == nil)
fatal("out of memory");
}
DEBUG(DFD, "\tinclude %s\n", line+2);
include[ni] = regcomp(line+2);
include[++ni] = nil;
break;
case '-':
if(ne+1 >= nmaxe){
nmaxe = 2*nmaxe;
exclude = realloc(exclude, nmaxe*sizeof(*exclude));
if(exclude == nil)
fatal("out of memory");
}
DEBUG(DFD, "\texclude %s\n", line+2);
exclude[ne] = regcomp(line+2);
exclude[++ne] = nil;
break;
default:
DEBUG(DFD, "ignoring pattern %s\n", line);
break;
}
}
Bterm(f);
}
static int
plinit(Serialport *p)
{
char *st;
uint8_t *buf;
uint32_t csp, maxpkt, dno;
Serial *ser;
ser = p->s;
buf = emallocz(VendorReqSz, 1);
dsprint(2, "plinit\n");
csp = ser->dev->usb->csp;
maxpkt = ser->dev->maxpkt;
dno = ser->dev->usb->dno;
if((ser->type = revid(dno)) == TypeUnk)
ser->type = heuristicid(csp, maxpkt);
dsprint(2, "serial: type %d\n", ser->type);
vendorread(p, 0x8484, 0, buf);
vendorwrite(p, 0x0404, 0);
vendorread(p, 0x8484, 0, buf);
vendorread(p, 0x8383, 0, buf);
vendorread(p, 0x8484, 0, buf);
vendorwrite(p, 0x0404, 1);
vendorread(p, 0x8484, 0, buf);
vendorread(p, 0x8383, 0, buf);
vendorwrite(p, Dcr0Idx|DcrSet, Dcr0Init);
vendorwrite(p, Dcr1Idx|DcrSet, Dcr1Init);
if(ser->type == TypeHX)
vendorwrite(p, Dcr2Idx|DcrSet, Dcr2InitX);
else
vendorwrite(p, Dcr2Idx|DcrSet, Dcr2InitH);
plgetparam(p);
qunlock(ser);
free(buf);
st = emallocz(255, 1);
qlock(ser);
if(serialdebug)
serdumpst(p, st, 255);
dsprint(2, st);
free(st);
/* p gets freed by closedev, the process has a reference */
incref(ser->dev);
proccreate(statusreader, p, 8*1024);
return 0;
}
void
ixp_pending_respond(Ixp9Req *req) {
IxpFileId *file;
IxpPendingLink *p;
IxpRequestLink *req_link;
IxpQueue *queue;
file = req->fid->aux;
assert(file->pending);
p = file->p;
if(p->queue) {
queue = p->queue;
p->queue = queue->link;
req->ofcall.io.data = queue->dat;
req->ofcall.io.count = queue->len;
if(req->aux) {
req_link = req->aux;
req_link->next->prev = req_link->prev;
req_link->prev->next = req_link->next;
free(req_link);
}
ixp_respond(req, nil);
free(queue);
}else {
req_link = emallocz(sizeof *req_link);
req_link->req = req;
req_link->next = &p->pending->req;
req_link->prev = req_link->next->prev;
req_link->next->prev = req_link;
req_link->prev->next = req_link;
req->aux = req_link;
}
}
static void
addfunc(Sym *s, void* p)
{
int h;
List *l;
USED(p);
if(s->type != 'T')
return;
if (((s->name[0] == '.' || s->name[0] == '$')))
return;
if(s->name[0] == '_')
return;
h = hash(s->name, Nhash);
for(l = Functab[h]; l; l = l->next)
if(strcmp(l->name, s->name) == 0)
return;
l = emallocz(sizeof(List) +strlen(s->name) +1, 0);
l->name = (char *)&l[1];
strcpy(l->name, s->name);
l->next = Functab[h];
Functab[h] = l;
}
static Buf*
allocbuf(Ether *e)
{
Buf *bp;
bp = nbrecvp(e->bc);
if(bp == nil){
qlock(e);
if(e->nabufs < Nbufs){
bp = emallocz(sizeof(Buf), 1);
e->nabufs++;
setmalloctag(bp, getcallerpc(&e));
deprint(2, "%s: %d buffers\n", argv0, e->nabufs);
}
qunlock(e);
}
if(bp == nil){
deprint(2, "%s: blocked waiting for allocbuf\n", argv0);
bp = recvp(e->bc);
}
bp->rp = bp->data + Hdrsize;
bp->ndata = 0;
if(0)deprint(2, "%s: allocbuf %#p\n", argv0, bp);
qlock(e);
e->nbufs++;
qunlock(e);
return bp;
}
Frame*
frame_create(Client *c, View *v) {
static ushort id = 1;
Frame *f;
f = emallocz(sizeof *f);
f->id = id++;
f->client = c;
f->view = v;
if(c->sel) {
f->floatr = c->sel->floatr;
f->r = c->sel->r;
}else if(c->sel) {
f->floatr = c->frame->floatr;
f->r = c->frame->r;
}else {
f->r = client_grav(c, c->r);
f->floatr = f->r;
c->sel = f;
}
f->collapsed = false;
f->screen = -1;
f->oldarea = -1;
f->oldscreen = -1;
return f;
}
static void
configroothub(Hub *h)
{
Dev *d;
char buf[128];
char *p;
int nr;
d = h->dev;
h->nport = 2;
h->maxpkt = 8;
seek(d->cfd, 0, 0);
nr = read(d->cfd, buf, sizeof(buf)-1);
if(nr < 0)
goto Done;
buf[nr] = 0;
p = strstr(buf, "ports ");
if(p == nil)
fprint(2, "%s: %s: no port information\n", argv0, d->dir);
else
h->nport = atoi(p+6);
p = strstr(buf, "maxpkt ");
if(p == nil)
fprint(2, "%s: %s: no maxpkt information\n", argv0, d->dir);
else
h->maxpkt = atoi(p+7);
Done:
h->port = emallocz((h->nport+1)*sizeof(Port), 1);
dprint(2, "%s: %s: ports %d maxpkt %d\n", argv0, d->dir, h->nport, h->maxpkt);
}
static Conn*
newconn(Ether *e)
{
int i;
Conn *c;
qlock(e);
for(i = 0; i < nelem(e->conns); i++){
c = e->conns[i];
if(c == nil || c->ref == 0){
if(c == nil){
c = emallocz(sizeof(Conn), 1);
c->rc = chancreate(sizeof(Buf*), 16);
c->nb = i;
}
c->ref = 1;
if(i == e->nconns)
e->nconns++;
e->conns[i] = c;
deprint(2, "%s: newconn %d\n", argv0, i);
qunlock(e);
return c;
}
}
qunlock(e);
return nil;
}
static int
cmdreq(Dev *d, int type, int req, int value, int index, uchar *data, int count)
{
int ndata, n;
uchar *wp;
uchar buf[8];
char *hd, *rs;
assert(d != nil);
if(data == nil){
wp = buf;
ndata = 0;
}else{
ndata = count;
wp = emallocz(8+ndata, 0);
}
wp[0] = type;
wp[1] = req;
PUT2(wp+2, value);
PUT2(wp+4, index);
PUT2(wp+6, count);
if(data != nil)
memmove(wp+8, data, ndata);
if(usbdebug>2){
hd = hexstr(wp, ndata+8);
rs = reqstr(type, req);
fprint(2, "%s: %s val %d|%d idx %d cnt %d out[%d] %s\n",
d->dir, rs, value>>8, value&0xFF,
index, count, ndata+8, hd);
free(hd);
}
void
setstruts(Bool autohide) {
int *struts;
Atom net_wm_strut_partial;
Atom net_wm_window_type;
Atom net_wm_window_type_dock;
XWindowAttributes wa;
net_wm_strut_partial = XInternAtom(dpy, "_NET_WM_STRUT_PARTIAL", False);
net_wm_window_type = XInternAtom(dpy, "_NET_WM_WINDOW_TYPE", False);
net_wm_window_type_dock = XInternAtom(dpy, "_NET_WM_WINDOW_TYPE_DOCK", False);
struts = emallocz(12*sizeof(int));
XGetWindowAttributes(dpy, win, &wa);
int x, y, w, h, b, d;
XGetGeometry(dpy, win, &root, &x, &y, &w, &h, &b, &d);
fprintf(stderr, "%d %d\n", x, y);
fprintf(stderr, "x:%d y:%d ht: %d\n", wa.x, wa.y, DisplayHeight(dpy, screen));
if(bottom) {
struts[Bottom] = DisplayHeight(dpy, screen) - my + mh;
fprintf(stderr, "BotStrut=%d\n", struts[Bottom]);
struts[BotStartX] = mx;
struts[BotEndX] = mx+mw;
}
else {
struts[Top] = mh + my;
struts[TopStartX] = mx;
struts[TopEndX] = mx+mw;
}
XChangeProperty(dpy, win, net_wm_strut_partial, XA_CARDINAL, 32, PropModeReplace, (unsigned char*)struts, 12);
XChangeProperty(dpy, win, net_wm_window_type, XA_ATOM, 32, PropModeReplace, (unsigned char*)&net_wm_window_type_dock, 1);
free(struts);
}
Ep*
mkep(Usbdev *d, int id)
{
Ep *ep;
d->ep[id] = ep = emallocz(sizeof(Ep), 1);
ep->id = id;
return ep;
}
static int
confighub(Hub *h)
{
int type;
uint8_t buf[128]; /* room for extra descriptors */
int i;
Usbdev *d;
DHub *dd;
Port *pp;
int nr;
int nmap;
uint8_t *PortPwrCtrlMask;
int offset;
int mask;
d = h->dev->usb;
for(i = 0; i < nelem(d->ddesc); i++)
if(d->ddesc[i] == nil)
break;
else if(d->ddesc[i]->data.bDescriptorType == Dhub){
dd = (DHub*)&d->ddesc[i]->data;
nr = Dhublen;
goto Config;
}
type = Rd2h|Rclass|Rdev;
nr = usbcmd(h->dev, type, Rgetdesc, Dhub<<8|0, 0, buf, sizeof buf);
if(nr < Dhublen){
dprint(2, "%s: %s: getdesc hub: %r\n", argv0, h->dev->dir);
return -1;
}
dd = (DHub*)buf;
Config:
h->nport = dd->bNbrPorts;
nmap = 1 + h->nport/8;
if(nr < 7 + 2*nmap){
fprint(2, "%s: %s: descr. too small\n", argv0, h->dev->dir);
return -1;
}
h->port = emallocz((h->nport+1)*sizeof(Port), 1);
h->pwrms = dd->bPwrOn2PwrGood*2;
if(h->pwrms < Powerdelay)
h->pwrms = Powerdelay;
h->maxcurrent = dd->bHubContrCurrent;
h->pwrmode = dd->wHubCharacteristics[0] & 3;
h->compound = (dd->wHubCharacteristics[0] & (1<<2))!=0;
h->leds = (dd->wHubCharacteristics[0] & (1<<7)) != 0;
PortPwrCtrlMask = dd->DeviceRemovable + nmap;
for(i = 1; i <= h->nport; i++){
pp = &h->port[i];
offset = i/8;
mask = 1<<(i%8);
pp->removable = (dd->DeviceRemovable[offset] & mask) != 0;
pp->pwrctl = (PortPwrCtrlMask[offset] & mask) != 0;
}
return 0;
}
XftColor*
xftcolor(Image *i, Color *c) {
XftColor *xc;
xc = emallocz(sizeof *c);
*xc = (XftColor) {
pixelvalue(i, c), c->red, c->green, c->blue, c->alpha
};
return freelater(xc);
}
static Key*
getkey(const char *name) {
Key *k, *r;
char buf[128];
char *seq[8];
char *kstr;
int mask;
uint i, toks;
static ushort id = 1;
r = nil;
if((k = name2key(name))) {
ungrabkey(k);
return k;
}
utflcpy(buf, name, sizeof buf);
toks = tokenize(seq, 8, buf, ',');
for(i = 0; i < toks; i++) {
if(!k)
r = k = emallocz(sizeof *k);
else {
k->next = emallocz(sizeof *k);
k = k->next;
}
utflcpy(k->name, name, sizeof k->name);
if(parsekey(seq[i], &mask, &kstr)) {
k->key = keycode(kstr);
k->mod = mask;
}
if(k->key == 0) {
freekey(r);
return nil;
}
}
if(r) {
r->id = id++;
r->lnext = key;
key = r;
}
return r;
}
void
setcmd(int argc, char *argv[]) {
int i;
cmd = emallocz((argc+3) * sizeof(*cmd));
if (argc == 0)
return;
for(i = 0; i < argc; i++)
cmd[i] = argv[i];
cmd[argc] = cmd[argc+1] = NULL;
}
static void
compileregs(void)
{
unsigned int i;
regex_t *reg;
for (i = 0; i < nrules; i++) {
if (rules[i]->prop) {
reg = emallocz(sizeof(regex_t));
if (regcomp(reg, rules[i]->prop, REG_EXTENDED))
free(reg);
else
rules[i]->propregex = reg;
}
if (rules[i]->tags) {
reg = emallocz(sizeof(regex_t));
if (regcomp(reg, rules[i]->tags, REG_EXTENDED))
free(reg);
else
rules[i]->tagregex = reg;
}
}
}
void
parse_cpp(State *s)
{
int l, alloc;
char *p, *buf;
struct {
char *name;
void (*func)(State *, char *);
} *d, dir[] = {
{ "include", doinclude },
{ "define", dodefine },
{ "ifndef", doifndef },
{ "undef", doundef },
{ "ifdef", doifdef },
{ "endif", doendif },
{ "elif", doelif },
{ "else", doelse },
{ "if", doif },
{ "pragma", dopragma },
};
alloc = Memchunk;
buf = emallocz(alloc, 0);
while((buf = pass1(s, buf, &alloc)) != nil){
p = buf;
while(isspace(*p))
p++;
if(*p++ != '#')
continue;
while(isspace(*p))
p++;
for(d = dir; d < &dir[nelem(dir)]; d++){
l = strlen(d->name);
if(strncmp(p, d->name, l) == 0){
p += l;
break;
}
}
if(d >= &dir[nelem(dir)])
continue;
while(isspace(*p))
p++;
//print("%s:%d %s %s [%d -> ", s->file, s->line, d->name, p, peek(s));
d->func(s, p);
//print("%d]\n", peek(s));
}
free(buf);
}
void
manage(Window w, XWindowAttributes *wa) {
Client *c, *t;
Window trans;
c = emallocz(sizeof(Client));
c->win = w;
c->x = wa->x;
c->y = wa->y;
c->w = wa->width;
c->h = wa->height;
if(c->w == sw && c->h == sh) {
c->border = 0;
c->x = sx;
c->y = sy;
}
else {
c->border = BORDERPX;
if(c->x + c->w + 2 * c->border > sx + sw)
c->x = sx + sw - c->w - 2 * c->border;
if(c->y + c->h + 2 * c->border > sy + sh)
c->y = sy + sh - c->h - 2 * c->border;
if(c->x < sx)
c->x = sx;
if(c->y < sy)
c->y = sy;
}
updatesizehints(c);
XSelectInput(dpy, c->win,
StructureNotifyMask | PropertyChangeMask | EnterWindowMask);
XGetTransientForHint(dpy, c->win, &trans);
XSetWindowBorder(dpy, c->win, normcol);
updatetitle(c);
if((t = getclient(trans)))
c->view = t->view;
else
c->view = view;
if(clients)
clients->prev = c;
c->next = clients;
c->snext = stack;
stack = clients = c;
XMoveWindow(dpy, c->win, c->x + 2 * sw, c->y);
XMapWindow(dpy, c->win);
setclientstate(c, NormalState);
if(c->view == view)
focus(c);
arrange();
}
char *
hexstr(void *a, int n)
{
int i;
char *dbuff, *s, *e;
uint8_t *b;
b = a;
dbuff = s = emallocz(1024, 0);
*s = 0;
e = s + 1024;
for(i = 0; i < n; i++)
s = seprint(s, e, " %.2ux", b[i]);
if(s == e)
fprint(2, "%s: usb/lib: hexdump: bug: small buffer\n", argv0);
return dbuff;
}
/**
* Function: ixp_listen
*
* Params:
* fs - The file descriptor on which to listen.
* aux - A piece of data to store in the connection's
* T<IxpConn> data structure.
* read - The function to call when the connection has
* data available to read.
* close - A cleanup function to call when the
* connection is closed.
*
* Starts the server P<s> listening on P<fd>. The optional
* callbacks are called as described, with the connections
* T<IxpConn> data structure as their arguments.
*
* Returns:
* Returns the connection's new T<IxpConn> data
* structure.
*
* S<IxpConn>
*/
IxpConn*
ixp_listen(IxpServer *s, int fd, void *aux,
void (*read)(IxpConn *c),
void (*close)(IxpConn *c)
) {
IxpConn *c;
c = emallocz(sizeof *c);
c->fd = fd;
c->aux = aux;
c->srv = s;
c->read = read;
c->close = close;
c->next = s->conn;
s->conn = c;
return c;
}
static void
statusreader(void *u)
{
Areader *a;
Channel *c;
Packser *pk;
Serialport *p;
Serial *ser;
int cl;
p = u;
ser = p->s;
threadsetname("statusreader thread");
/* big buffering, fewer bytes lost */
c = chancreate(sizeof(Packser *), 128);
a = emallocz(sizeof(Areader), 1);
a->p = p;
a->c = c;
incref(ser->dev);
proccreate(epreader, a, 16*1024);
while((pk = recvp(c)) != nil){
memmove(p->data, pk->b, pk->nb);
p->ndata = pk->nb;
free(pk);
dsprint(2, "serial %p: status reader %d \n", p, p->ndata);
/* consume it all */
while(p->ndata != 0){
dsprint(2, "serial %p: status reader to consume: %d\n",
p, p->ndata);
cl = recvul(p->w4data);
if(cl < 0)
break;
cl = sendul(p->gotdata, 1);
if(cl < 0)
break;
}
}
shutdownchan(c);
devctl(ser->dev, "detach");
closedev(ser->dev);
usbfsdel(&p->fs);
}
PaqDir *
paqDirAlloc(Dir *dir, ulong offset)
{
PaqDir *pd;
static ulong qid = 1;
pd = emallocz(sizeof(PaqDir));
pd->name = strdup(dir->name);
pd->qid = qid++;
pd->mode = dir->mode & (DMDIR|DMAPPEND|0777);
pd->mtime = dir->mtime;
pd->length = dir->length;
pd->uid = strdup(dir->uid);
pd->gid = strdup(dir->gid);
pd->offset = offset;
return pd;
}
void
ewmh_update_net_current_desktop(void *p) {
Monitor *m;
unsigned long *seltags;
unsigned int i;
seltags = emallocz(ntags * sizeof(unsigned long));
for (m = monitors; m != NULL; m = m->next) {
for (i = 0; i < ntags; i++)
seltags[i] |= m->seltags[i];
}
XChangeProperty(dpy, root,
atom[ESelTags], XA_CARDINAL, 32, PropModeReplace,
(unsigned char *) seltags, ntags);
XChangeProperty(dpy, root, atom[CurDesk], XA_CARDINAL, 32,
PropModeReplace, (unsigned char *) &curmontag, 1);
update_echinus_layout_name(NULL);
free(seltags);
}
static char*
mkstr(uchar *b, int n)
{
Rune r;
char *us;
char *s;
char *e;
if(n <= 2 || (n & 1) != 0)
return strdup("none");
n = (n - 2)/2;
b += 2;
us = s = emallocz(n*UTFmax+1, 0);
e = s + n*UTFmax+1;
for(; --n >= 0; b += 2){
r = GET2(b);
s = seprint(s, e, "%C", r);
}
return us;
}
static int
wait4write(Serialport *p, uchar *data, int count)
{
int off, fd;
uchar *b;
Serial *ser;
ser = p->s;
b = emallocz(count+ser->outhdrsz, 1);
off = ftsetouthdr(p, b, count);
memmove(b+off, data, count);
fd = p->epout->dfd;
qunlock(ser);
count = write(fd, b, count+off);
qlock(ser);
free(b);
return count;
}
int
loaddevdesc(Dev *d)
{
uchar buf[Ddevlen+255];
int nr;
int type;
Ep *ep0;
type = Rd2h|Rstd|Rdev;
nr = sizeof(buf);
memset(buf, 0, Ddevlen);
if((nr=usbcmd(d, type, Rgetdesc, Ddev<<8|0, 0, buf, nr)) < 0)
return -1;
/*
* Several hubs are returning descriptors of 17 bytes, not 18.
* We accept them and leave number of configurations as zero.
* (a get configuration descriptor also fails for them!)
*/
if(nr < Ddevlen){
print("%s: %s: warning: device with short descriptor\n",
argv0, d->dir);
if(nr < Ddevlen-1){
werrstr("short device descriptor (%d bytes)", nr);
return -1;
}
}
d->usb = emallocz(sizeof(Usbdev), 1);
ep0 = mkep(d->usb, 0);
ep0->dir = Eboth;
ep0->type = Econtrol;
ep0->maxpkt = d->maxpkt = 8; /* a default */
nr = parsedev(d, buf, nr);
if(nr >= 0){
d->usb->vendor = loaddevstr(d, d->usb->vsid);
if(strcmp(d->usb->vendor, "none") != 0){
d->usb->product = loaddevstr(d, d->usb->psid);
d->usb->serial = loaddevstr(d, d->usb->ssid);
}
}
return nr;
}