kmx git

Commit	Date	Message
d77f3672	2013-10-18T23:42:02	Fixing the memory leak for remaining semaphores means we can go back to using async transfers on other OSes with our own timeout management again.
8e9f32a8	2013-10-18T23:30:05	Add a forcelog variant of applog which invalidates any console lock to force output.
789d448e	2013-10-18T07:05:35	Perform sync transfers on shutdown to allow final transfers to complete.
ad8d9497	2013-10-18T06:55:30	Destroy cgsems used after transfers to not leave open files on osx.
103bc0ba	2013-10-17T18:52:07	Revert to using timeouts on !linux since libusb leaks memory without them.
955e971d	2013-10-16T20:47:26	Prevent further USB transfers from occurring once the shutdown signal has been sent to prevent transfers getting stuck and libusb failing to shut down.
4e5946d2	2013-10-16T20:47:26	Prevent further USB transfers from occurring once the shutdown signal has been sent to prevent transfers getting stuck and libusb failing to shut down.
7c6bd4a8	2013-10-15T00:26:50	Emulate the libusb_control_transfer sync setup in our async variant.
e6280c85	2013-10-15T00:13:06	Add the libusb control setup size offset for control writes.
91d1d104	2013-10-15T00:00:00	Merge branch 'master' of github.com:ckolivas/cgminer
8fdaeb0a	2013-10-14T23:59:01	Differentiate send from receive in control transfers!
bae0815e	2013-10-14T03:45:44	Merge pull request #505 from kanoi/master usbutils - make all libusb_error_name messages the same
108e7376	2013-10-14T21:44:10	usbutils - make all libusb_error_name messages the same
9e287f95	2013-10-14T03:27:57	Merge pull request #499 from someone42/master changes to bitburner driver for bitburner fury boards
02a4f8df	2013-10-14T11:44:37	Convert the usb callback function to using cgsem_t timed waits to avoid race conditions with conditionals/mutexes.
1d9f90b2	2013-10-14T11:39:15	Revert "Convert the usb callback function to use a cgsem_t using the timedwait code to avoid races with mutexes/conditionals." This reverts commit 433465bcfcd8d9a2270cb27dd0ea933e9fefa829. Not ready yet.
433465bc	2013-10-14T11:35:47	Convert the usb callback function to use a cgsem_t using the timedwait code to avoid races with mutexes/conditionals.
9ca22ed4	2013-10-14T10:05:49	Use the one LIBUSB_ERROR_TIMEOUT for cancelled transactions since this error is explicitly tested for in various drivers.
a7580f1f	2013-10-14T09:40:23	Do not use locking on usb callback function pthread signalling to prevent deadlock with libusb's own event lock.
280dc4bf	2013-10-14T00:54:05	Lock mutex before second pthread_cond_wait in usbutils to prevent a race.
84de52c1	2013-10-13T10:11:46	Use a write lock when performing any USB control transfers to prevent concurrent transfers.
c0690286	2013-10-12T17:44:28	Free a libusb transfer after we have finished using it to avoid a dereference in usb_control_transfer
84f642f5	2013-10-12T15:06:48	Although async transfers are meant to use heap memory, we never return before the transfer function has completed so stack memory will suffice for control transfers, fixing a memory leak in the process.
2ca8d859	2013-10-12T08:45:03	Convert all usb control transfers to asynchronous communication with our own timeout management as well.
b5379760	2013-10-11T23:06:40	Make pthread conditional timeouts handle all bulk usb transfer timeouts performing libusb_cancel_transfer, disabling timeouts within libusb itself.
b509e843	2013-10-03T20:11:37	using separate identifier for bitburner fury boards
03ad59f2	2013-10-11T15:37:55	Add a small amount to the usb timeout before cancelling to allow for a regular usb polling interval to pass.
08d8612f	2013-10-11T14:47:01	Do not attempt to clear a usb halt before sending the cancel message since all transfers should normally be cancelled before attempting to clear a halt condition, and only change the return message to a timeout if it's consistent with a cancellation.
6d18ce4c	2013-10-11T14:37:40	Retry up to USB_RETRY_MAX times to clear a halt condition before failing.
3a7a677f	2013-10-11T13:43:16	Show the error number as well as the description in erroring bulk transfers.
b5dfacef	2013-10-11T10:15:06	We are always dependent on libusb handling events so use the blocking libusb_handle_events in the polling thread and use a bool to know if we should continue polling.
853aa28f	2013-10-11T08:49:59	Merge branch 'master' into async Conflicts: usbutils.c
32bc7461	2013-10-09T22:17:56	Check for presence of driver name in DRIVER_COUNT_FOUND to prevent strcmp on a null pointer when a driver is not built in.
dc9c3783	2013-10-08T22:05:01	Display errors on failed usb read and write and consider sequential IO errors a permanent failure.
a22f5bfd	2013-10-07T19:50:38	Use libusb's own error name function instead of hand coding the error names.
efd8c441	2013-10-07T20:35:42	Check for async transfer variants of error messages.
2806f49c	2013-10-07T20:34:13	Revert "Check for the async variants of the libusb errors and retry up to retry max when trying to clear a pipe error/stall." This reverts commit c7d5256b3657bd6d4f2f04f7288cd757bcbf77a5.
d34279b2	2013-10-08T20:48:26	Remove unused variables.
f80c9003	2013-10-08T20:46:36	Merge branch 'master' into async Conflicts: api.c cgminer.c miner.h usbutils.c util.c
ef8efd6c	2013-10-08T00:01:26	Minimise the time between dropping the read devlock and grabbing the write devlock to avoid tons of logging spam in the interim.
85e0b3a5	2013-10-07T20:03:53	Check for the async variants of the libusb errors and retry up to retry max when trying to clear a pipe error/stall.
a79768b7	2013-10-07T19:50:38	Use libusb's own error name function instead of hand coding the error names.
74775e4e	2013-10-07T18:40:09	Check for libusb transfer stall error to be consistent with async IO errors returned for a halt condition.
38ae7093	2013-10-07T17:56:57	Check for continuous IO errors on USB and consider the device inactive if more than retry max.
7318ecee	2013-10-07T23:34:01	Make the devlock a cglock in usbutils and only grab the write lock for fundamental changes allowing us to send and receive transfers concurrently without lock contention.
6cd7f0f1	2013-10-04T12:00:41	Remove unmaintained broken ztex driver.
51418f79	2013-10-03T23:19:18	Klondike update code to current git
585d4af4	2013-10-07T23:32:01	Store statistics on how often we have to cancel async bulk transfers and add a debug message whenever we do.
1d1efbe7	2013-10-03T11:50:45	Treat any unexpected timeouts waiting for async transfers as though there may be a usb halt condition and attempt to clear the halt before cancelling the tranfer.
a798e14a	2013-10-02T06:53:25	Remove zero packet flag on usb as it's unsupported outside linux and unnecessary.
37509564	2013-10-01T17:34:32	Fake the libusb transfer timed out message if we force cancel it with our own async functions.
a6a94070	2013-10-01T14:40:30	Use asynchronous transfers for all bulk transfers, allowing us to use our own timers and cancelling transfers that take too long.
99176584	2013-09-30T21:30:11	Add libusb error warning message when significant error occurs.
a47e4a48	2013-10-07T20:35:42	Check for async transfer variants of error messages.
08406274	2013-10-07T20:34:13	Revert "Check for the async variants of the libusb errors and retry up to retry max when trying to clear a pipe error/stall." This reverts commit c7d5256b3657bd6d4f2f04f7288cd757bcbf77a5.
50d1d367	2013-10-07T20:07:34	Check for either async or sync libusb error message for timeout.
c7d5256b	2013-10-07T20:03:53	Check for the async variants of the libusb errors and retry up to retry max when trying to clear a pipe error/stall.
aa75d841	2013-10-07T19:50:38	Use libusb's own error name function instead of hand coding the error names.
f9313927	2013-10-07T18:40:09	Check for libusb transfer stall error to be consistent with async IO errors returned for a halt condition.
0b56becc	2013-10-07T17:56:57	Check for continuous IO errors on USB and consider the device inactive if more than retry max.
023ca6a1	2013-10-07T17:17:20	Remove devlock lock contention statistics since transfers are all done under read lock now.
59ff31d8	2013-10-07T17:11:33	Make the devlock a cglock in usbutils and only grab the write lock for fundamental changes allowing us to send and receive transfers concurrently without lock contention.
3b266594	2013-10-07T14:57:08	Merge branch 'master' into libusbx Conflicts: api.c miner.h usbutils.c
052e4348	2013-10-04T12:00:41	Remove unmaintained broken ztex driver.
dc85abd9	2013-10-03T23:19:18	Klondike update code to current git
bfdf3af1	2013-10-03T12:05:48	Store statistics on how often we have to cancel async bulk transfers and add a debug message whenever we do.
603bba67	2013-10-03T11:50:45	Treat any unexpected timeouts waiting for async transfers as though there may be a usb halt condition and attempt to clear the halt before cancelling the tranfer.
3eece618	2013-09-30T21:50:06	Get statistics on how long usb reads and writes wait on the devlock.
c5d61b4c	2013-10-02T06:53:25	Remove zero packet flag on usb as it's unsupported outside linux and unnecessary.
382433eb	2013-10-01T17:34:32	Fake the libusb transfer timed out message if we force cancel it with our own async functions.
69c01a14	2013-10-01T14:40:30	Use asynchronous transfers for all bulk transfers, allowing us to use our own timers and cancelling transfers that take too long.
b3ceb7e2	2013-09-30T21:50:06	Get statistics on how long usb reads and writes wait on the devlock.
d2f99cbe	2013-09-30T21:30:11	Add libusb error warning message when significant error occurs.
14887ba8	2013-09-29T17:44:41	usbinfo.devlock is only ever write locked so convert it to a mutex
ff90e6ae	2013-09-29T17:44:41	usbinfo.devlock is only ever write locked so convert it to a mutex
5e1ebd50	2013-09-29T13:54:16	Deuglify use of _PARSE_COMMANDS macro expansions.
303a7631	2013-09-29T13:08:15	Deuglify use of usb parse commands macro in usbutils.
8b341ccd	2013-09-29T02:48:39	Use macro expansion in usb_find_devices to avoid explicitly listing them all.
0952a881	2013-09-29T02:45:45	Use macro expansion to iterate over all the drivers without explicitly writing them out in usbutils.c
39c2e662	2013-09-28T23:12:29	Reattach the kernel driver on linux on usb_uninit.
3ef9fa3b	2013-09-28T23:09:26	Attach the kernel driver on failure to usb init on linux.
00aa8b4e	2013-09-28T23:05:39	libusb kernel driver operations are only available on linux.
372c4095	2013-09-28T12:44:36	Reuse the DRIVER_ macros to avoid having yet another definition for DRV_
2903028e	2013-09-28T11:45:58	Use macro expansion to generate extern device_drv prototypes.
88751974	2013-09-28T10:25:48	Create a macro list of drivers to enable easier addition of further drivers.
c50b13a6	2013-09-28T01:01:48	Merge branch 'master' of github.com:ckolivas/cgminer into redfury
71797050	2013-09-27T22:37:14	There is no point setting the BF1 preferred packet size to the maximum since it will do so automatically.
9b9dde16	2013-09-27T16:56:25	usbutils - fix USBDEBUG warnings
8d133706	2013-09-27T15:04:07	Remove unnecessary steps in communicating with BF1 and just use USB interface 1.
61c2ac57	2013-09-27T14:57:22	usbutils - usb_bulk_transfer fix the buf/data fix
2ba7fbe5	2013-09-27T14:35:35	Merge branch 'master' of github.com:ckolivas/cgminer into redfury
ffea432f	2013-09-27T14:25:57	usb_bulk_transfer - use the allocated buffer
2fc5c1d0	2013-09-27T13:47:35	Set preferred packet sizes per interface on BF1.
621114c5	2013-09-27T13:08:36	Merge branch 'master' of github.com:ckolivas/cgminer into redfury
d3a3b3a7	2013-09-27T13:07:04	usbutils allow PrefPacketSize per endpoint
8e4909f8	2013-09-27T11:00:48	Merge branch 'master' of github.com:ckolivas/cgminer into redfury
7deaa91b	2013-09-27T10:36:23	Add information for 2nd USB interface on BF1 devices and choose interface 1 for bulk transfers.
d8518f43	2013-09-27T10:08:59	usbutils - bulk transfer copy test fix
8d6126ac	2013-09-27T09:53:04	Merge branch 'master' of github.com:ckolivas/cgminer into redfury
a62267fa	2013-09-27T09:44:58	usbutils - add USBDEBUG for usb_bulk_transfer

d77f3672

2013-10-18T23:42:02

Fixing the memory leak for remaining semaphores means we can go back to using async transfers on other OSes with our own timeout management again.

8e9f32a8

2013-10-18T23:30:05

Add a forcelog variant of applog which invalidates any console lock to force output.

789d448e

2013-10-18T07:05:35

Perform sync transfers on shutdown to allow final transfers to complete.

ad8d9497

2013-10-18T06:55:30

Destroy cgsems used after transfers to not leave open files on osx.

103bc0ba

2013-10-17T18:52:07

Revert to using timeouts on !linux since libusb leaks memory without them.

955e971d

2013-10-16T20:47:26

Prevent further USB transfers from occurring once the shutdown signal has been sent to prevent transfers getting stuck and libusb failing to shut down.

4e5946d2

2013-10-16T20:47:26

Prevent further USB transfers from occurring once the shutdown signal has been sent to prevent transfers getting stuck and libusb failing to shut down.

7c6bd4a8

2013-10-15T00:26:50

Emulate the libusb_control_transfer sync setup in our async variant.

e6280c85

2013-10-15T00:13:06

Add the libusb control setup size offset for control writes.

91d1d104

2013-10-15T00:00:00

Merge branch 'master' of github.com:ckolivas/cgminer

8fdaeb0a

2013-10-14T23:59:01

Differentiate send from receive in control transfers!

bae0815e

2013-10-14T03:45:44

Merge pull request #505 from kanoi/master usbutils - make all libusb_error_name messages the same

108e7376

2013-10-14T21:44:10

usbutils - make all libusb_error_name messages the same

9e287f95

2013-10-14T03:27:57

Merge pull request #499 from someone42/master changes to bitburner driver for bitburner fury boards

02a4f8df

2013-10-14T11:44:37

Convert the usb callback function to using cgsem_t timed waits to avoid race conditions with conditionals/mutexes.

1d9f90b2

2013-10-14T11:39:15

Revert "Convert the usb callback function to use a cgsem_t using the timedwait code to avoid races with mutexes/conditionals." This reverts commit 433465bcfcd8d9a2270cb27dd0ea933e9fefa829. Not ready yet.

433465bc

2013-10-14T11:35:47

Convert the usb callback function to use a cgsem_t using the timedwait code to avoid races with mutexes/conditionals.

9ca22ed4

2013-10-14T10:05:49

Use the one LIBUSB_ERROR_TIMEOUT for cancelled transactions since this error is explicitly tested for in various drivers.

a7580f1f

2013-10-14T09:40:23

Do not use locking on usb callback function pthread signalling to prevent deadlock with libusb's own event lock.

280dc4bf

2013-10-14T00:54:05

Lock mutex before second pthread_cond_wait in usbutils to prevent a race.

84de52c1

2013-10-13T10:11:46

Use a write lock when performing any USB control transfers to prevent concurrent transfers.

c0690286

2013-10-12T17:44:28

Free a libusb transfer after we have finished using it to avoid a dereference in usb_control_transfer

84f642f5

2013-10-12T15:06:48

Although async transfers are meant to use heap memory, we never return before the transfer function has completed so stack memory will suffice for control transfers, fixing a memory leak in the process.

2ca8d859

2013-10-12T08:45:03

Convert all usb control transfers to asynchronous communication with our own timeout management as well.

b5379760

2013-10-11T23:06:40

Make pthread conditional timeouts handle all bulk usb transfer timeouts performing libusb_cancel_transfer, disabling timeouts within libusb itself.

b509e843

2013-10-03T20:11:37

using separate identifier for bitburner fury boards

03ad59f2

2013-10-11T15:37:55

Add a small amount to the usb timeout before cancelling to allow for a regular usb polling interval to pass.

08d8612f

2013-10-11T14:47:01

Do not attempt to clear a usb halt before sending the cancel message since all transfers should normally be cancelled before attempting to clear a halt condition, and only change the return message to a timeout if it's consistent with a cancellation.

6d18ce4c

2013-10-11T14:37:40

Retry up to USB_RETRY_MAX times to clear a halt condition before failing.

3a7a677f

2013-10-11T13:43:16

Show the error number as well as the description in erroring bulk transfers.

b5dfacef

2013-10-11T10:15:06

We are always dependent on libusb handling events so use the blocking libusb_handle_events in the polling thread and use a bool to know if we should continue polling.

853aa28f

2013-10-11T08:49:59

Merge branch 'master' into async Conflicts: usbutils.c

32bc7461

2013-10-09T22:17:56

Check for presence of driver name in DRIVER_COUNT_FOUND to prevent strcmp on a null pointer when a driver is not built in.

dc9c3783

2013-10-08T22:05:01

Display errors on failed usb read and write and consider sequential IO errors a permanent failure.

a22f5bfd

2013-10-07T19:50:38

Use libusb's own error name function instead of hand coding the error names.

efd8c441

2013-10-07T20:35:42

Check for async transfer variants of error messages.

2806f49c

2013-10-07T20:34:13

Revert "Check for the async variants of the libusb errors and retry up to retry max when trying to clear a pipe error/stall." This reverts commit c7d5256b3657bd6d4f2f04f7288cd757bcbf77a5.

d34279b2

2013-10-08T20:48:26

Remove unused variables.

f80c9003

2013-10-08T20:46:36

Merge branch 'master' into async Conflicts: api.c cgminer.c miner.h usbutils.c util.c

ef8efd6c

2013-10-08T00:01:26

Minimise the time between dropping the read devlock and grabbing the write devlock to avoid tons of logging spam in the interim.

85e0b3a5

2013-10-07T20:03:53

Check for the async variants of the libusb errors and retry up to retry max when trying to clear a pipe error/stall.

a79768b7

2013-10-07T19:50:38

Use libusb's own error name function instead of hand coding the error names.

74775e4e

2013-10-07T18:40:09

Check for libusb transfer stall error to be consistent with async IO errors returned for a halt condition.

38ae7093

2013-10-07T17:56:57

Check for continuous IO errors on USB and consider the device inactive if more than retry max.

7318ecee

2013-10-07T23:34:01

Make the devlock a cglock in usbutils and only grab the write lock for fundamental changes allowing us to send and receive transfers concurrently without lock contention.

6cd7f0f1

2013-10-04T12:00:41

Remove unmaintained broken ztex driver.

51418f79

2013-10-03T23:19:18

Klondike update code to current git

585d4af4

2013-10-07T23:32:01

Store statistics on how often we have to cancel async bulk transfers and add a debug message whenever we do.

1d1efbe7

2013-10-03T11:50:45

Treat any unexpected timeouts waiting for async transfers as though there may be a usb halt condition and attempt to clear the halt before cancelling the tranfer.

a798e14a

2013-10-02T06:53:25

Remove zero packet flag on usb as it's unsupported outside linux and unnecessary.

37509564

2013-10-01T17:34:32

Fake the libusb transfer timed out message if we force cancel it with our own async functions.

a6a94070

2013-10-01T14:40:30

Use asynchronous transfers for all bulk transfers, allowing us to use our own timers and cancelling transfers that take too long.

99176584

2013-09-30T21:30:11

Add libusb error warning message when significant error occurs.

a47e4a48

2013-10-07T20:35:42

Check for async transfer variants of error messages.

08406274

2013-10-07T20:34:13

Revert "Check for the async variants of the libusb errors and retry up to retry max when trying to clear a pipe error/stall." This reverts commit c7d5256b3657bd6d4f2f04f7288cd757bcbf77a5.

50d1d367

2013-10-07T20:07:34

Check for either async or sync libusb error message for timeout.

c7d5256b

2013-10-07T20:03:53

Check for the async variants of the libusb errors and retry up to retry max when trying to clear a pipe error/stall.

aa75d841

2013-10-07T19:50:38

Use libusb's own error name function instead of hand coding the error names.

f9313927

2013-10-07T18:40:09

Check for libusb transfer stall error to be consistent with async IO errors returned for a halt condition.

0b56becc

2013-10-07T17:56:57

Check for continuous IO errors on USB and consider the device inactive if more than retry max.

023ca6a1

2013-10-07T17:17:20

Remove devlock lock contention statistics since transfers are all done under read lock now.

59ff31d8

2013-10-07T17:11:33

Make the devlock a cglock in usbutils and only grab the write lock for fundamental changes allowing us to send and receive transfers concurrently without lock contention.

3b266594

2013-10-07T14:57:08

Merge branch 'master' into libusbx Conflicts: api.c miner.h usbutils.c

052e4348

2013-10-04T12:00:41

Remove unmaintained broken ztex driver.

dc85abd9

2013-10-03T23:19:18

Klondike update code to current git

bfdf3af1

2013-10-03T12:05:48

Store statistics on how often we have to cancel async bulk transfers and add a debug message whenever we do.

603bba67

2013-10-03T11:50:45

Treat any unexpected timeouts waiting for async transfers as though there may be a usb halt condition and attempt to clear the halt before cancelling the tranfer.

3eece618

2013-09-30T21:50:06

Get statistics on how long usb reads and writes wait on the devlock.

c5d61b4c

2013-10-02T06:53:25

Remove zero packet flag on usb as it's unsupported outside linux and unnecessary.

382433eb

2013-10-01T17:34:32

Fake the libusb transfer timed out message if we force cancel it with our own async functions.

69c01a14

2013-10-01T14:40:30

Use asynchronous transfers for all bulk transfers, allowing us to use our own timers and cancelling transfers that take too long.

b3ceb7e2

2013-09-30T21:50:06

Get statistics on how long usb reads and writes wait on the devlock.

d2f99cbe

2013-09-30T21:30:11

Add libusb error warning message when significant error occurs.

14887ba8

2013-09-29T17:44:41

usbinfo.devlock is only ever write locked so convert it to a mutex

ff90e6ae

2013-09-29T17:44:41

usbinfo.devlock is only ever write locked so convert it to a mutex

5e1ebd50

2013-09-29T13:54:16

Deuglify use of _PARSE_COMMANDS macro expansions.

303a7631

2013-09-29T13:08:15

Deuglify use of usb parse commands macro in usbutils.

8b341ccd

2013-09-29T02:48:39

Use macro expansion in usb_find_devices to avoid explicitly listing them all.

0952a881

2013-09-29T02:45:45

Use macro expansion to iterate over all the drivers without explicitly writing them out in usbutils.c

39c2e662

2013-09-28T23:12:29

Reattach the kernel driver on linux on usb_uninit.

3ef9fa3b

2013-09-28T23:09:26

Attach the kernel driver on failure to usb init on linux.

00aa8b4e

2013-09-28T23:05:39

libusb kernel driver operations are only available on linux.

372c4095

2013-09-28T12:44:36

Reuse the DRIVER_ macros to avoid having yet another definition for DRV_

2903028e

2013-09-28T11:45:58

Use macro expansion to generate extern device_drv prototypes.

88751974

2013-09-28T10:25:48

Create a macro list of drivers to enable easier addition of further drivers.

c50b13a6

2013-09-28T01:01:48

Merge branch 'master' of github.com:ckolivas/cgminer into redfury

71797050

2013-09-27T22:37:14

There is no point setting the BF1 preferred packet size to the maximum since it will do so automatically.

9b9dde16

2013-09-27T16:56:25

usbutils - fix USBDEBUG warnings

8d133706

2013-09-27T15:04:07

Remove unnecessary steps in communicating with BF1 and just use USB interface 1.

61c2ac57

2013-09-27T14:57:22

usbutils - usb_bulk_transfer fix the buf/data fix

2ba7fbe5

2013-09-27T14:35:35

Merge branch 'master' of github.com:ckolivas/cgminer into redfury

ffea432f

2013-09-27T14:25:57

usb_bulk_transfer - use the allocated buffer

2fc5c1d0

2013-09-27T13:47:35

Set preferred packet sizes per interface on BF1.

621114c5

2013-09-27T13:08:36

Merge branch 'master' of github.com:ckolivas/cgminer into redfury

d3a3b3a7

2013-09-27T13:07:04

usbutils allow PrefPacketSize per endpoint

8e4909f8

2013-09-27T11:00:48

Merge branch 'master' of github.com:ckolivas/cgminer into redfury

7deaa91b

2013-09-27T10:36:23

Add information for 2nd USB interface on BF1 devices and choose interface 1 for bulk transfers.

d8518f43

2013-09-27T10:08:59

usbutils - bulk transfer copy test fix

8d6126ac

2013-09-27T09:53:04

Merge branch 'master' of github.com:ckolivas/cgminer into redfury

a62267fa

2013-09-27T09:44:58

usbutils - add USBDEBUG for usb_bulk_transfer

thodg/cgminer/usbutils.c

usbutils.c

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