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Code Issues Releases Wiki Activity

Check for no usb device in usb_ftdi_cts

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This commit is contained in:
ckolivas 2013-05-29 16:35:34 +10:00
parent f3093803d1
commit 641883a572
1 changed files with 12 additions and 10 deletions
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22
usbutils.c
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@ -2027,16 +2027,6 @@ int _usb_read(struct cgpu_info *cgpu, int ep, char *buf, size_t bufsiz, int *pro
unsigned char usbbuf[USB_MAX_READ+4], *ptr;
size_t usbbufread;
if (unlikely(!usbdev))
return LIBUSB_ERROR_NO_DEVICE;
ftdi = (usbdev->usb_type == USB_TYPE_FTDI);
USBDEBUG("USB debug: _usb_read(%s (nodev=%s),ep=%d,buf=%p,bufsiz=%zu,proc=%p,timeout=%u,end=%s,cmd=%s,ftdi=%s,readonce=%s)", cgpu->drv->name, bool_str(cgpu->usbinfo.nodev), ep, buf, bufsiz, processed, timeout, end ? (char *)str_text((char *)end) : "NULL", usb_cmdname(cmd), bool_str(ftdi), bool_str(readonce));
if (bufsiz > USB_MAX_READ)
quit(1, "%s USB read request %d too large (max=%d)", cgpu->drv->name, bufsiz, USB_MAX_READ);
if (cgpu->usbinfo.nodev) {
*buf = '\0';
*processed = 0;
@ -2045,6 +2035,13 @@ int _usb_read(struct cgpu_info *cgpu, int ep, char *buf, size_t bufsiz, int *pro
return LIBUSB_ERROR_NO_DEVICE;
}
ftdi = (usbdev->usb_type == USB_TYPE_FTDI);
USBDEBUG("USB debug: _usb_read(%s (nodev=%s),ep=%d,buf=%p,bufsiz=%zu,proc=%p,timeout=%u,end=%s,cmd=%s,ftdi=%s,readonce=%s)", cgpu->drv->name, bool_str(cgpu->usbinfo.nodev), ep, buf, bufsiz, processed, timeout, end ? (char *)str_text((char *)end) : "NULL", usb_cmdname(cmd), bool_str(ftdi), bool_str(readonce));
if (bufsiz > USB_MAX_READ)
quit(1, "%s USB read request %d too large (max=%d)", cgpu->drv->name, bufsiz, USB_MAX_READ);
if (timeout == DEVTIMEOUT)
timeout = usbdev->found->timeout;
@ -2204,6 +2201,11 @@ int usb_ftdi_cts(struct cgpu_info *cgpu)
struct cg_usb_device *usbdev = cgpu->usbdev;
unsigned char buf[2], ret;
/* We return true in case drivers are waiting indefinitely to try and
* write to something that's not there. */
if (cgpu->usbinfo.nodev)
return true;
libusb_control_transfer(usbdev->handle, (uint8_t)FTDI_TYPE_IN,
(uint8_t)5, (uint16_t)0, (uint16_t)0, buf, 2,
DEVTIMEOUT);