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Code Issues Releases Wiki Activity

usbutils - in init only change the config if needed

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This commit is contained in:
Kano 2013-07-16 15:51:17 +10:00
parent 3245ec7ad5
commit 948f0057c4
1 changed files with 39 additions and 13 deletions
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52
usbutils.c
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@ -1485,6 +1485,7 @@ static int _usb_init(struct cgpu_info *cgpu, struct libusb_device *dev, struct u
char devstr[STRBUFLEN+1];
int err, i, j, k, pstate;
int bad = USB_INIT_FAIL;
int cfg;
DEVLOCK(cgpu, pstate);
@ -1606,20 +1607,28 @@ static int _usb_init(struct cgpu_info *cgpu, struct libusb_device *dev, struct u
}
}
err = libusb_set_configuration(cgusb->handle, found->config);
if (err) {
switch(err) {
case LIBUSB_ERROR_BUSY:
applog(LOG_WARNING,
"USB init, set config %d in use %s",
found->config, devstr);
break;
default:
applog(LOG_DEBUG,
"USB init, failed to set config to %d, err %d %s",
found->config, err, devstr);
cfg = -1;
err = libusb_get_configuration(cgusb->handle, &cfg);
if (err)
cfg = -1;
// Try to set it if we can't read it or it's different
if (cfg != found->config) {
err = libusb_set_configuration(cgusb->handle, found->config);
if (err) {
switch(err) {
case LIBUSB_ERROR_BUSY:
applog(LOG_WARNING,
"USB init, set config %d in use %s",
found->config, devstr);
break;
default:
applog(LOG_DEBUG,
"USB init, failed to set config to %d, err %d %s",
found->config, err, devstr);
}
goto cldame;
}
goto cldame;
}
err = libusb_get_active_config_descriptor(dev, &config);
@ -1681,6 +1690,17 @@ static int _usb_init(struct cgpu_info *cgpu, struct libusb_device *dev, struct u
goto cldame;
}
cfg = -1;
err = libusb_get_configuration(cgusb->handle, &cfg);
if (err)
cfg = -1;
if (cfg != found->config) {
applog(LOG_WARNING,
"USB init, incorrect config (%d!=%d) after claim of %s",
cfg, found->config, devstr);
goto reldame;
}
cgusb->usbver = cgusb->descriptor->bcdUSB;
// TODO: allow this with the right version of the libusb include and running library
@ -1732,6 +1752,10 @@ static int _usb_init(struct cgpu_info *cgpu, struct libusb_device *dev, struct u
bad = USB_INIT_OK;
goto out_unlock;
reldame:
libusb_release_interface(cgusb->handle, found->interface);
cldame:
cg_wlock(&cgusb_fd_lock);
@ -1897,6 +1921,8 @@ void usb_detect(struct device_drv *drv, bool (*device_detect)(struct libusb_devi
if (count == 0)
applog(LOG_DEBUG, "USB scan devices: found no devices");
else
nmsleep(166);
for (i = 0; i < count; i++) {
if (total_count >= total_limit) {