| intro.4 (f4d874a1db833173112c1f9fe338994fc82cc882) | intro.4 (b92a189eb9b32f7e9db74343d46434b554a67d04) |
|---|---|
| 1.\" 2.\" Copyright (c) 1996 David E. O'Brien, Joerg Wunsch 3.\" 4.\" All rights reserved. 5.\" 6.\" Redistribution and use in source and binary forms, with or without 7.\" modification, are permitted provided that the following conditions 8.\" are met: --- 72 unchanged lines hidden (view full) --- 81.Pp 82Note that this could lead to an inconsistent state, where either there 83are device nodes that do not have a configured driver associated with 84them, or there may be drivers that have successfully probed for their 85devices, but cannot be accessed since the corresponding device node is 86still missing. In the first case, any attempt to reference the device 87through the device node will result in an error, returned by the upper 88layers of the kernel, usually | 1.\" 2.\" Copyright (c) 1996 David E. O'Brien, Joerg Wunsch 3.\" 4.\" All rights reserved. 5.\" 6.\" Redistribution and use in source and binary forms, with or without 7.\" modification, are permitted provided that the following conditions 8.\" are met: --- 72 unchanged lines hidden (view full) --- 81.Pp 82Note that this could lead to an inconsistent state, where either there 83are device nodes that do not have a configured driver associated with 84them, or there may be drivers that have successfully probed for their 85devices, but cannot be accessed since the corresponding device node is 86still missing. In the first case, any attempt to reference the device 87through the device node will result in an error, returned by the upper 88layers of the kernel, usually |
| 89.Ql ENXIO . | 89.Er ENXIO . |
| 90In the second case, the device node needs to be created before the 91driver and its device will be usable. 92.Pp 93Some devices come in two flavors: 94.Em block 95and 96.Em character 97devices, or by a better name, buffered and unbuffered --- 79 unchanged lines hidden --- | 90In the second case, the device node needs to be created before the 91driver and its device will be usable. 92.Pp 93Some devices come in two flavors: 94.Em block 95and 96.Em character 97devices, or by a better name, buffered and unbuffered --- 79 unchanged lines hidden --- |