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don't require a buffer if all we are doing is manipulating the GPIO pins...

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MFC after:	3 weeks
This commit is contained in:
John-Mark Gurney 2006-05-26 07:36:50 +00:00
parent 3cd6252069
commit d13fc3e62d
1 changed files with 9 additions and 0 deletions
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9
sys/dev/bktr/bktr_os.c
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@ -149,6 +149,8 @@ SYSCTL_INT(_hw_bt848, OID_AUTO, dolby, CTLFLAG_RW, &bt848_dolby, 0, "");
#include <vm/vm.h>
#include <dev/bktr/ioctl_bt848.h> /* extensions to ioctl_meteor.h */
#ifndef __NetBSD__
#include <vm/vm_kern.h>
#include <vm/pmap.h>
@ -767,8 +769,15 @@ bktr_ioctl( struct cdev *dev, ioctl_cmd_t cmd, caddr_t arg, int flag, struct thr
return (ENXIO);
}
#ifdef BKTR_GPIO_ACCESS
if (bktr->bigbuf == 0 && cmd != BT848_GPIO_GET_EN &&
cmd != BT848_GPIO_SET_EN && cmd != BT848_GPIO_GET_DATA &&
cmd != BT848_GPIO_SET_DATA) /* no frame buffer allocated (ioctl failed) */
return( ENOMEM );
#else
if (bktr->bigbuf == 0) /* no frame buffer allocated (ioctl failed) */
return( ENOMEM );
#endif
switch ( FUNCTION( minor(dev) ) ) {
case VIDEO_DEV: