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author | orivej <orivej@yandex-team.ru> | 2022-02-10 16:45:01 +0300 |
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committer | Daniil Cherednik <dcherednik@yandex-team.ru> | 2022-02-10 16:45:01 +0300 |
commit | 2d37894b1b037cf24231090eda8589bbb44fb6fc (patch) | |
tree | be835aa92c6248212e705f25388ebafcf84bc7a1 /contrib/libs/linux-headers/linux/pg.h | |
parent | 718c552901d703c502ccbefdfc3c9028d608b947 (diff) | |
download | ydb-2d37894b1b037cf24231090eda8589bbb44fb6fc.tar.gz |
Restoring authorship annotation for <orivej@yandex-team.ru>. Commit 2 of 2.
Diffstat (limited to 'contrib/libs/linux-headers/linux/pg.h')
-rw-r--r-- | contrib/libs/linux-headers/linux/pg.h | 134 |
1 files changed, 67 insertions, 67 deletions
diff --git a/contrib/libs/linux-headers/linux/pg.h b/contrib/libs/linux-headers/linux/pg.h index 99529d6b9f..7f4c809223 100644 --- a/contrib/libs/linux-headers/linux/pg.h +++ b/contrib/libs/linux-headers/linux/pg.h @@ -1,67 +1,67 @@ -/* SPDX-License-Identifier: GPL-1.0+ WITH Linux-syscall-note */ -/* pg.h (c) 1998 Grant R. Guenther <grant@torque.net> - Under the terms of the GNU General Public License - - - pg.h defines the user interface to the generic ATAPI packet - command driver for parallel port ATAPI devices (pg). The - driver is loosely modelled after the generic SCSI driver, sg, - although the actual interface is different. - - The pg driver provides a simple character device interface for - sending ATAPI commands to a device. With the exception of the - ATAPI reset operation, all operations are performed by a pair - of read and write operations to the appropriate /dev/pgN device. - A write operation delivers a command and any outbound data in - a single buffer. Normally, the write will succeed unless the - device is offline or malfunctioning, or there is already another - command pending. If the write succeeds, it should be followed - immediately by a read operation, to obtain any returned data and - status information. A read will fail if there is no operation - in progress. - - As a special case, the device can be reset with a write operation, - and in this case, no following read is expected, or permitted. - - There are no ioctl() operations. Any single operation - may transfer at most PG_MAX_DATA bytes. Note that the driver must - copy the data through an internal buffer. In keeping with all - current ATAPI devices, command packets are assumed to be exactly - 12 bytes in length. - - To permit future changes to this interface, the headers in the - read and write buffers contain a single character "magic" flag. - Currently this flag must be the character "P". - -*/ - -#ifndef _LINUX_PG_H -#define _LINUX_PG_H - -#define PG_MAGIC 'P' -#define PG_RESET 'Z' -#define PG_COMMAND 'C' - -#define PG_MAX_DATA 32768 - -struct pg_write_hdr { - - char magic; /* == PG_MAGIC */ - char func; /* PG_RESET or PG_COMMAND */ - int dlen; /* number of bytes expected to transfer */ - int timeout; /* number of seconds before timeout */ - char packet[12]; /* packet command */ - -}; - -struct pg_read_hdr { - - char magic; /* == PG_MAGIC */ - char scsi; /* "scsi" status == sense key */ - int dlen; /* size of device transfer request */ - int duration; /* time in seconds command took */ - char pad[12]; /* not used */ - -}; - -#endif /* _LINUX_PG_H */ +/* SPDX-License-Identifier: GPL-1.0+ WITH Linux-syscall-note */ +/* pg.h (c) 1998 Grant R. Guenther <grant@torque.net> + Under the terms of the GNU General Public License + + + pg.h defines the user interface to the generic ATAPI packet + command driver for parallel port ATAPI devices (pg). The + driver is loosely modelled after the generic SCSI driver, sg, + although the actual interface is different. + + The pg driver provides a simple character device interface for + sending ATAPI commands to a device. With the exception of the + ATAPI reset operation, all operations are performed by a pair + of read and write operations to the appropriate /dev/pgN device. + A write operation delivers a command and any outbound data in + a single buffer. Normally, the write will succeed unless the + device is offline or malfunctioning, or there is already another + command pending. If the write succeeds, it should be followed + immediately by a read operation, to obtain any returned data and + status information. A read will fail if there is no operation + in progress. + + As a special case, the device can be reset with a write operation, + and in this case, no following read is expected, or permitted. + + There are no ioctl() operations. Any single operation + may transfer at most PG_MAX_DATA bytes. Note that the driver must + copy the data through an internal buffer. In keeping with all + current ATAPI devices, command packets are assumed to be exactly + 12 bytes in length. + + To permit future changes to this interface, the headers in the + read and write buffers contain a single character "magic" flag. + Currently this flag must be the character "P". + +*/ + +#ifndef _LINUX_PG_H +#define _LINUX_PG_H + +#define PG_MAGIC 'P' +#define PG_RESET 'Z' +#define PG_COMMAND 'C' + +#define PG_MAX_DATA 32768 + +struct pg_write_hdr { + + char magic; /* == PG_MAGIC */ + char func; /* PG_RESET or PG_COMMAND */ + int dlen; /* number of bytes expected to transfer */ + int timeout; /* number of seconds before timeout */ + char packet[12]; /* packet command */ + +}; + +struct pg_read_hdr { + + char magic; /* == PG_MAGIC */ + char scsi; /* "scsi" status == sense key */ + int dlen; /* size of device transfer request */ + int duration; /* time in seconds command took */ + char pad[12]; /* not used */ + +}; + +#endif /* _LINUX_PG_H */ |