static u32 redrat3_get_timeout(struct redrat3_dev *rr3)
{
u32 *tmp;
u32 timeout = MS_TO_US(150); /* */
int len, ret, pipe;
len = sizeof(*tmp);
tmp = kzalloc(len, GFP_KERNEL);
if (!tmp) {
dev_warn(rr3->dev, "Memory allocation faillure\n");
return timeout;
}
pipe = usb_rcvctrlpipe(rr3->udev, 0);
ret = usb_control_msg(rr3->udev, pipe, RR3_GET_IR_PARAM,
USB_TYPE_VENDOR | USB_RECIP_DEVICE | USB_DIR_IN,
RR3_IR_IO_SIG_TIMEOUT, 0, tmp, len, HZ * 5);
if (ret != len) {
dev_warn(rr3->dev, "Failed to read timeout from hardware\n");
return timeout;
}
timeout = redrat3_len_to_us(be32_to_cpu(*tmp));
rr3_dbg(rr3->dev, "Got timeout of %d ms\n", timeout / 1000);
return timeout;
}
static u32 redrat3_get_timeout(struct redrat3_dev *rr3)
{
__be32 *tmp;
u32 timeout = MS_TO_US(150); /* a sane default, if things go haywire */
int len, ret, pipe;
len = sizeof(*tmp);
tmp = kzalloc(len, GFP_KERNEL);
if (!tmp)
return timeout;
pipe = usb_rcvctrlpipe(rr3->udev, 0);
ret = usb_control_msg(rr3->udev, pipe, RR3_GET_IR_PARAM,
USB_TYPE_VENDOR | USB_RECIP_DEVICE | USB_DIR_IN,
RR3_IR_IO_SIG_TIMEOUT, 0, tmp, len, HZ * 5);
if (ret != len)
dev_warn(rr3->dev, "Failed to read timeout from hardware\n");
else {
timeout = redrat3_len_to_us(be32_to_cpup(tmp));
dev_dbg(rr3->dev, "Got timeout of %d ms\n", timeout / 1000);
}
kfree(tmp);
return timeout;
}
