struct xusb *xusb_open_one(const struct xusb_spec *specs, int numspecs, xusb_filter_t filterfunc, void *data)
{
struct xlist_node *xusb_list;
struct xlist_node *curr;
int num;
struct xusb *xusb = NULL;
xusb_list = xusb_find_byproduct(specs, numspecs, filterfunc, data);
num = xlist_length(xusb_list);
DBG("total %d devices\n", num);
switch(num) {
case 0:
ERR("No matching device.\n");
break;
case 1:
curr = xlist_shift(xusb_list);
xusb = curr->data;
xlist_destroy(curr, NULL);
xlist_destroy(xusb_list, NULL);
xusb_claim_interface(xusb);
xusb_showinfo(xusb);
break;
default:
ERR("Too many devices (%d). Aborting.\n", num);
break;
}
return xusb;
}
/*
* USB handling
*/
struct astribank_device *astribank_open(const char devpath[], int iface_num)
{
struct astribank_device *astribank = NULL;
struct xusb *xusb;
DBG("devpath='%s' iface_num=%d\n", devpath, iface_num);
if((astribank = malloc(sizeof(struct astribank_device))) == NULL) {
ERR("Out of memory\n");
goto fail;
}
memset(astribank, 0, sizeof(*astribank));
if (iface_num) {
xusb = xusb_find_bypath(astribank_specs, ARRAY_SIZE(astribank_specs), devpath);
} else {
xusb = xusb_find_bypath(astribank_pic_specs, ARRAY_SIZE(astribank_pic_specs), devpath);
}
if (!xusb) {
ERR("%s: No device found\n", __func__);
goto fail;
}
astribank->xusb = xusb;
astribank->is_usb2 = (xusb_packet_size(xusb) == 512);
astribank->my_interface_num = iface_num;
if (xusb_claim_interface(astribank->xusb) < 0) {
ERR("xusb_claim_interface failed\n");
goto fail;
}
astribank->tx_sequenceno = 1;
return astribank;
fail:
if (astribank) {
free(astribank);
astribank = NULL;
}
return NULL;
}
