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block: add bdrv_probe_device method

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Add a bdrv_probe_device method to all BlockDriver instances implementing
host devices to move matching of host device types into the actual drivers.
For now we keep exacly the old matching behaviour based on the devices names,
although we really should have better detetion methods based on device
information in the future.

Signed-off-by: Christoph Hellwig <hch@lst.de>
This commit is contained in:
Christoph Hellwig 2009-06-15 14:04:22 +02:00 • committed by Christoph Hellwig
parent f3a5d3f8a1
commit 508c7cb3fa
4 changed files with 74 additions and 32 deletions
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5
block_int.h
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@ -48,6 +48,7 @@ struct BlockDriver {
const char *format_name;
int instance_size;
int (*bdrv_probe)(const uint8_t *buf, int buf_size, const char *filename);
int (*bdrv_probe_device)(const char *filename);
int (*bdrv_open)(BlockDriverState *bs, const char *filename, int flags);
int (*bdrv_read)(BlockDriverState *bs, int64_t sector_num,
uint8_t *buf, int nb_sectors);
@ -177,4 +178,8 @@ void *qemu_blockalign(BlockDriverState *bs, size_t size);
extern BlockDriverState *bdrv_first;
#ifdef _WIN32
int is_windows_drive(const char *filename);
#endif
#endif /* BLOCK_INT_H */