diff options
author | Ralf Baechle <ralf@linux-mips.org> | 2000-11-23 02:00:47 +0000 |
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committer | Ralf Baechle <ralf@linux-mips.org> | 2000-11-23 02:00:47 +0000 |
commit | 06615f62b17d7de6e12d2f5ec6b88cf30af08413 (patch) | |
tree | 8766f208847d4876a6db619aebbf54d53b76eb44 /drivers/usb/scanner.h | |
parent | fa9bdb574f4febb751848a685d9a9017e04e1d53 (diff) |
Merge with Linux 2.4.0-test10.
Diffstat (limited to 'drivers/usb/scanner.h')
-rw-r--r-- | drivers/usb/scanner.h | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/drivers/usb/scanner.h b/drivers/usb/scanner.h index bf01c8082..c1ec964dc 100644 --- a/drivers/usb/scanner.h +++ b/drivers/usb/scanner.h @@ -30,6 +30,7 @@ #include <linux/delay.h> #include <linux/ioctl.h> #include <linux/sched.h> +#include <linux/smp_lock.h> // #define DEBUG @@ -94,6 +95,7 @@ struct scn_usb_data { char *obuf, *ibuf; /* transfer buffers */ char bulk_in_ep, bulk_out_ep, intr_ep; /* Endpoint assignments */ wait_queue_head_t rd_wait_q; /* read timeouts */ + struct semaphore gen_lock; /* lock to prevent concurrent reads or writes */ }; static struct scn_usb_data *p_scn_table[SCN_MAX_MNR] = { NULL, /* ... */}; |