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author | patacongo <patacongo@42af7a65-404d-4744-a932-0658087f49c3> | 2008-09-06 13:29:14 +0000 |
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committer | patacongo <patacongo@42af7a65-404d-4744-a932-0658087f49c3> | 2008-09-06 13:29:14 +0000 |
commit | bf15faf28c3826541af41632784beaefdb9a2254 (patch) | |
tree | 693df9115f41cfdf1df8985ab608e34db7c5dc44 /nuttx/Documentation/NuttShell.html | |
parent | 0d247e402ea9508b15e37fdd16d96e7d5ddd5498 (diff) | |
download | px4-nuttx-bf15faf28c3826541af41632784beaefdb9a2254.tar.gz px4-nuttx-bf15faf28c3826541af41632784beaefdb9a2254.tar.bz2 px4-nuttx-bf15faf28c3826541af41632784beaefdb9a2254.zip |
Add NSH command to create RAMDISK
git-svn-id: svn://svn.code.sf.net/p/nuttx/code/trunk@884 42af7a65-404d-4744-a932-0658087f49c3
Diffstat (limited to 'nuttx/Documentation/NuttShell.html')
-rw-r--r-- | nuttx/Documentation/NuttShell.html | 112 |
1 files changed, 87 insertions, 25 deletions
diff --git a/nuttx/Documentation/NuttShell.html b/nuttx/Documentation/NuttShell.html index 2c8d8e2fb..fa8003a17 100644 --- a/nuttx/Documentation/NuttShell.html +++ b/nuttx/Documentation/NuttShell.html @@ -179,73 +179,79 @@ <tr> <td><br></td> <td> - <a href="#cmdmount">2.18 Mount a File System (mount)</a> + <a href="#cmdmkrd">2.18 Create a RAMDISK (mkrd)</a> </td> </tr> <tr> <td><br></td> <td> - <a href="#cmdping">2.19 Check Network Peer (ping)</a> + <a href="#cmdmount">2.19 Mount a File System (mount)</a> </td> </tr> <tr> <td><br></td> <td> - <a href="#cmdput">2.20 Send File Via TFTP (put)</a> + <a href="#cmdping">2.20 Check Network Peer (ping)</a> </td> </tr> <tr> <td><br></td> <td> - <a href="#cmdpwd">2.21 Show Current Working Directory (pwd)</a> + <a href="#cmdput">2.21 Send File Via TFTP (put)</a> </td> </tr> <tr> <td><br></td> <td> - <a href="#cmdrm">2.22 Remove a File (rm)</a> + <a href="#cmdpwd">2.22 Show Current Working Directory (pwd)</a> </td> </tr> <tr> <td><br></td> <td> - <a href="#cmdrmdir">2.23 Remove a Directory (rmdir)</a> + <a href="#cmdrm">2.23 Remove a File (rm)</a> </td> </tr> <tr> <td><br></td> <td> - <a href="#cmdset">2.24 Set an Environment Variable (set)</a> + <a href="#cmdrmdir">2.24 Remove a Directory (rmdir)</a> </td> </tr> <tr> <td><br></td> <td> - <a href="#cmdsh">2.25 Execute an NSH Script (sh)</a> + <a href="#cmdset">2.25 Set an Environment Variable (set)</a> </td> </tr> <tr> <td><br></td> <td> - <a href="#cmdsleep">2.26 Wait for Seconds (sleep)</a> + <a href="#cmdsh">2.26 Execute an NSH Script (sh)</a> </td> </tr> <tr> <td><br></td> <td> - <a href="#cmdunmount">2.27 Unmount a File System (umount)</a> + <a href="#cmdsleep">2.27 Wait for Seconds (sleep)</a> </td> </tr> <tr> <td><br></td> <td> - <a href="#cmdunset">2.28 Unset an Environment Variable (unset)</a> + <a href="#cmdunmount">2.28 Unmount a File System (umount)</a> </td> </tr> <tr> <td><br></td> <td> - <a href="#cmdusleep">2.29 Wait for Microseconds (usleep)</a> + <a href="#cmdunset">2.29 Unset an Environment Variable (unset)</a> + </td> +</tr> +<tr> + <td><br></td> + <td> + <a href="#cmdusleep">2.30 Wait for Microseconds (usleep)</a> </td> </tr> <tr> @@ -989,7 +995,58 @@ nsh> <table width ="100%"> <tr bgcolor="#e4e4e4"> <td> - <a name="cmdmount"><h2>2.18 Mount a File System (mount)</h2></a> + <a name="cmdmkrd"><h2>2.18 Create a RAMDISK (mkrd)</h2></a> + </td> +</tr> +</table> + +<p><b>Command Syntax:</b></p> +<ul><pre> +mkrd [-m <minor>] [-s <sector-size>] <nsectors> +</pre></ul> +<p> + <b>Synopsis</b>. + Create a ramdisk consisting of <code><nsectors></code>, each of size + <code><sector-size></code> (or 512 bytes if <code><sector-size></code> is not specified. + The ramdisk will be registered as <code>/dev/ram<n></code> (if <code><n></code> is not + specified, mkrd will attempt to register the ramdisk as <code>/dev/ram0</code>. +</p> +<p><b>Example</b></p> +<ul><pre> +nsh> ls /dev +/dev: + console + null + ttyS0 + ttyS1 +nsh> mkrd 1024 +nsh> ls /dev +/dev: + console + null + ram0 + ttyS0 + ttyS1 +nsh> +</pre></ul> +<p> + Once the ramdisk has been created, it may be formatted using + the <code>mkfatfs</code> command and mounted using the <code>mount</code> command. +</p> +<p><b>Example</b></p> +<ul><pre> +nsh> mkrd 1024 +nsh> mkfatfs /dev/ram0 +nsh> mount -t vfat /dev/ram0 /tmp +nsh> ls /tmp +/tmp: +nsh> +</pre></ul> + +<table width ="100%"> + <tr bgcolor="#e4e4e4"> + <td> + <a name="cmdmount"><h2>2.19 Mount a File System (mount)</h2></a> </td> </tr> </table> @@ -1056,7 +1113,7 @@ nsh> <table width ="100%"> <tr bgcolor="#e4e4e4"> <td> - <a name="cmdping"><h2>2.19 Check Network Peer (ping)</h2></a> + <a name="cmdping"><h2>2.20 Check Network Peer (ping)</h2></a> </td> </tr> </table> @@ -1089,7 +1146,7 @@ nsh> <table width ="100%"> <tr bgcolor="#e4e4e4"> <td> - <a name="cmdput"><h2>2.20 Send File Via TFTP (put)</h2></a> + <a name="cmdput"><h2>2.21 Send File Via TFTP (put)</h2></a> </td> </tr> </table> @@ -1124,7 +1181,7 @@ put [-b|-n] [-f <remote-path>] -h <ip-address> <local-path> <table width ="100%"> <tr bgcolor="#e4e4e4"> <td> - <a name="cmdpwd"><h2>2.21 Show Current Working Directory (pwd)</h2></a> + <a name="cmdpwd"><h2>2.22 Show Current Working Directory (pwd)</h2></a> </td> </tr> </table> @@ -1154,7 +1211,7 @@ nsh> <table width ="100%"> <tr bgcolor="#e4e4e4"> <td> - <a name="cmdrm"><h2>2.22 Remove a File (rm)</h2></a> + <a name="cmdrm"><h2>2.23 Remove a File (rm)</h2></a> </td> </tr> </table> @@ -1188,7 +1245,7 @@ nsh> <table width ="100%"> <tr bgcolor="#e4e4e4"> <td> - <a name="cmdrmdir"><h2>2.23 Remove a Directory (rmdir)</h2></a> + <a name="cmdrmdir"><h2>2.24 Remove a Directory (rmdir)</h2></a> </td> </tr> </table> @@ -1223,7 +1280,7 @@ nsh> <table width ="100%"> <tr bgcolor="#e4e4e4"> <td> - <a name="cmdset"><h2>2.24 Set an Environment Variable (set)</h2></a> + <a name="cmdset"><h2>2.25 Set an Environment Variable (set)</h2></a> </td> </tr> </table> @@ -1249,7 +1306,7 @@ nsh> <table width ="100%"> <tr bgcolor="#e4e4e4"> <td> - <a name="cmdsh"><h2>2.25 Execute an NSH Script (sh)</h2></a> + <a name="cmdsh"><h2>2.26 Execute an NSH Script (sh)</h2></a> </td> </tr> </table> @@ -1267,7 +1324,7 @@ sh <script-path> <table width ="100%"> <tr bgcolor="#e4e4e4"> <td> - <a name="cmdsleep"><h2>2.26 Wait for Seconds (sleep)</h2></a> + <a name="cmdsleep"><h2>2.27 Wait for Seconds (sleep)</h2></a> </td> </tr> </table> @@ -1284,7 +1341,7 @@ sleep <sec> <table width ="100%"> <tr bgcolor="#e4e4e4"> <td> - <a name="cmdunmount"><h2>2.27 Unmount a File System (umount)</h2></a> + <a name="cmdunmount"><h2>2.28 Unmount a File System (umount)</h2></a> </td> </tr> </table> @@ -1314,7 +1371,7 @@ nsh> <table width ="100%"> <tr bgcolor="#e4e4e4"> <td> - <a name="cmdunset"><h2>2.28 Unset an Environment Variable (unset)</h2></a> + <a name="cmdunset"><h2>2.29 Unset an Environment Variable (unset)</h2></a> </td> </tr> </table> @@ -1340,7 +1397,7 @@ nsh> <table width ="100%"> <tr bgcolor="#e4e4e4"> <td> - <a name="cmdusleep"><h2>2.29 Wait for Microseconds (usleep)</h2></a> + <a name="cmdusleep"><h2>2.30 Wait for Microseconds (usleep)</h2></a> </td> </tr> </table> @@ -1448,7 +1505,11 @@ usleep <usec> </tr> <tr> <td><b><code>mkfifo</code></b></td> - <td>!<code>CONFIG_DISABLE_MOUNTPOINT</code> && <code>CONFIG_NFILE_DESCRIPTORS</code> > 0</td> + <td><code>CONFIG_NFILE_DESCRIPTORS</code> > 0</td> + </tr> + <tr> + <td><b><code>mkrd</code></b></td> + <td>!<code>CONFIG_DISABLE_MOUNTPOINT</code> && <code>CONFIG_NFILE_DESCRIPTORS</code> > 0 && <code>CONFIG_FS_FAT</code></td> </tr> <tr> <td><b><code>mount</code></b></td> @@ -1711,6 +1772,7 @@ usleep <usec> <li><a href="#cmdmkdir"><code>mkdir</code></a></li> <li><a href="#cmdmkfatfs"><code>mkfatfs</code></a></li> <li><a href="#cmdmkfifo"><code>mkfifo</code></a></li> + <li><a href="#cmdmkrd"><code>mkrd</code></a></li> <li><a href="#cmdmount"><code>mount</code></a></li> <li><a href="#cmdoverview"><code>nice</code></a></li> <li><a href="#environvars"><code>OLDPWD</code></a></li> |