diff --git a/include/console.h b/include/console.h
index 7116d69..4677b24 100644
--- a/include/console.h
+++ b/include/console.h
@@ -2,11 +2,12 @@
 
 #include <stdio.h>
 
-struct usart_console;
+struct console {
+	FILE *fp;
+};
 
-struct usart_console *console_init(unsigned dev_id);
-FILE *console_to_fp(struct usart_console *console);
-int console_peek(char *c, struct usart_console *console, int block);
-int console_getc(char *c, struct usart_console *console);
-int console_getline(struct usart_console *console, char *buf, size_t n);
-ssize_t console_read(struct usart_console *console, char *buf, size_t n);
+struct console *console_init(unsigned dev_id);
+int console_peek(char *c, struct console *console, int block);
+int console_getc(char *c, struct console *console);
+int console_getline(struct console *console, char *buf, size_t n);
+ssize_t console_read(struct console *console, char *buf, size_t n);
diff --git a/include/macros.h b/include/macros.h
index 4441dd9..a987cbf 100644
--- a/include/macros.h
+++ b/include/macros.h
@@ -7,6 +7,7 @@
 #endif
 
 #include <limits.h>
+#include <stdarg.h>
 
 #define min(x, y) ((x < y) ? (x) : (y))
 #define max(x, y) ((x > y) ? (x) : (y))
@@ -16,6 +17,9 @@
 #define MIB (1024 * KIB)
 #define GIB (1024 * MIB)
 
+#define container_of(ptr, type, member) \
+	(type *)((char *)ptr - offsetof(type, member))
+
 /* Rounding */
 #define IS_ROUND(x, k) (!((x) & ((k) - 1)))
 #define ROUND_DOWN(x, k) ((x) & ~((k) - 1))
diff --git a/include/shell.h b/include/shell.h
index 8c8245a..9b206bf 100644
--- a/include/shell.h
+++ b/include/shell.h
@@ -1,29 +1,31 @@
 #pragma once
 
+struct console;
+
 struct cmd {
 	const char *cmd;
 	const char *desc;
-	void (* exec)(FILE *out, const char **argv, size_t argc);
+	void (* exec)(struct console *con, const char **argv, size_t argc);
 };
 
 struct shell {
 	char line[128];
 	struct cmd *cmds;
 	const char *prompt;
-	struct usart_console *con;
-	FILE *fp;
+	struct console *con;
 };
 
 size_t count_args(const char *line);
 char **parse_args(const char *line, size_t *argc);
 
-void cmd_exec(struct cmd *cmds, FILE *out, const char **argv, size_t argc);
-void cmd_parse(struct cmd *cmds, FILE *out, const char *line);
+void cmd_exec(struct cmd *cmds, struct console *con, const char **argv,
+	size_t argc);
+void cmd_parse(struct cmd *cmds, struct console *con, const char *line);
 
 int shell_init(struct shell *shell, struct cmd *cmds,
-	struct usart_console *con, const char *prompt);
+	struct console *con, const char *prompt);
 int shell_parse(struct shell *shell);
 
-void do_flash_cmd(FILE *out, const char **argv, size_t argc);
-void do_ftl_cmd(FILE *out, const char **argv, size_t argc);
-void do_mufs_cmd(FILE *out, const char **argv, size_t argc);
+void do_flash_cmd(struct console *con, const char **argv, size_t argc);
+void do_ftl_cmd(struct console *con, const char **argv, size_t argc);
+void do_mufs_cmd(struct console *con, const char **argv, size_t argc);
diff --git a/source/drivers/usart_console.c b/source/drivers/usart_console.c
index 4071f70..3de711b 100644
--- a/source/drivers/usart_console.c
+++ b/source/drivers/usart_console.c
@@ -14,12 +14,13 @@
 #include <sys/types.h>
 
 #include <console.h>
+#include <macros.h>
 
 #define RECV_BUF_LEN 128
 
 struct usart_console {
+	struct console console;
 	char recv_buf[RECV_BUF_LEN];
-	FILE *fp;
 	volatile size_t cur;
 	volatile size_t next;
 	unsigned irq_no;
@@ -72,8 +73,11 @@ static char usart_getc(struct usart_console *console, int block)
 	return c;
 }
 
-int console_peek(char *c, struct usart_console *console, int block)
+int console_peek(char *c, struct console *console_, int block)
 {
+	struct usart_console *console = container_of(console_,
+		struct usart_console, console);
+
 	while (block && console->cur == console->next);
 
 	if (console->cur != console->next) {
@@ -84,8 +88,11 @@ int console_peek(char *c, struct usart_console *console, int block)
 	return -EAGAIN;
 }
 
-int console_getc(char *c, struct usart_console *console)
+int console_getc(char *c, struct console *console_)
 {
+	struct usart_console *console = container_of(console_,
+		struct usart_console, console);
+
 	if (console->cur == console->next)
 		return -1;
 
@@ -97,14 +104,16 @@ int console_getc(char *c, struct usart_console *console)
 	return 0;
 }
 
-int console_getline(struct usart_console *console, char *buf, size_t n)
+int console_getline(struct console *console_, char *buf, size_t n)
 {
+	struct usart_console *console = container_of(console_,
+		struct usart_console, console);
 	char *p = buf + strlen(buf);
 	char c;
 
 	*p = '\0';
 
-	while (console_getc(&c, console) == 0) {
+	while (console_getc(&c, console_) == 0) {
 		switch (c) {
 		case '\r':
 			usart_send_blocking(console->dev, '\r');
@@ -137,20 +146,22 @@ int console_getline(struct usart_console *console, char *buf, size_t n)
 	return -EAGAIN;
 }
 
-ssize_t console_read(struct usart_console *console, char *buf, size_t n)
+ssize_t console_read(struct console *console_, char *buf, size_t n)
 {
+	struct usart_console *console = container_of(console_,
+		struct usart_console, console);
 	char *p = buf;
 	char c;
 
 	*buf = '\0';
 
-	while (console_peek(&c, console, 1) == 0) {
+	while (console_peek(&c, console_, 1) == 0) {
 		switch (c) {
 		case '\004':
 			if (buf < p)
 				goto out;
 
-			console_getc(&c, console);
+			console_getc(&c, console_);
 			return 0;
 		case 10:
 		case 127:
@@ -161,7 +172,7 @@ ssize_t console_read(struct usart_console *console, char *buf, size_t n)
 				--p;
 			}
 
-			console_getc(&c, console);
+			console_getc(&c, console_);
 
 			break;
 		case '\r':
@@ -170,7 +181,7 @@ ssize_t console_read(struct usart_console *console, char *buf, size_t n)
 
 			*p++ = '\n';
 			usart_send_blocking(console->dev, '\r');
-			console_getc(&c, console);
+			console_getc(&c, console_);
 			goto out;
 		default:
 			if (((size_t)p - (size_t)buf) >= n)
@@ -178,7 +189,7 @@ ssize_t console_read(struct usart_console *console, char *buf, size_t n)
 
 			*p++ = c;
 			usart_send_blocking(console->dev, c);
-			console_getc(&c, console);
+			console_getc(&c, console_);
 			break;
 		}
 	}
@@ -280,10 +291,10 @@ static int usart_init(struct usart_console *console)
 	return 0;
 }
 
-struct usart_console *console_init(unsigned dev_id)
+struct console *console_init(unsigned dev_id)
 {
 	cookie_io_functions_t fops = {
-		.read = console_read,
+		.read = usart_read,
 		.write = usart_write,
 		.seek = NULL,
 		.close = NULL,
@@ -300,17 +311,11 @@ struct usart_console *console_init(unsigned dev_id)
 
 	console->cur = 0;
 	console->next = 0;
-	//usart[dev_id] = console;
 
 	usart_init(console);
 
-	console->fp = fopencookie(console, "r+w", fops);
-	setvbuf(console->fp, NULL, _IONBF, 0);
+	console->console.fp = fopencookie(console, "r+w", fops);
+	setvbuf(console->console.fp, NULL, _IONBF, 0);
 
-	return console;
-}
-
-FILE *console_to_fp(struct usart_console *console)
-{
-	return console->fp;
+	return &console->console;
 }
diff --git a/source/main.c b/source/main.c
index f651ca6..41c2d22 100644
--- a/source/main.c
+++ b/source/main.c
@@ -9,15 +9,15 @@
 
 #include <libopencm3/stm32/usart.h>
 
-struct usart_console *user_con, *admin_con;
+struct console *user_con, *admin_con;
 struct shell user_shell, admin_shell;
 
-static void do_echo(FILE *out, const char **argv, size_t argc)
+static void do_echo(struct console *con, const char **argv, size_t argc)
 {
 	if (argc < 1)
 		return;
 
-	fprintf(out, "%s\n", argv[0]);
+	fprintf(con->fp, "%s\n", argv[0]);
 }
 
 struct cmd user_cmds[] = {
@@ -35,19 +35,14 @@ struct cmd admin_cmds[] = {
 
 int main(void)
 {
-	FILE *fp;
-
 	rcc_init();
 	gpio_init();
 
 	user_con = console_init(0);
 	admin_con = console_init(1);
 
-	fp = console_to_fp(user_con);
-	fprintf(fp, "TBM-dev (built on " __DATE__ ")\n");
-
-	fp = console_to_fp(admin_con);
-	fprintf(fp, "TBM-dev (built on " __DATE__ ")\n");
+	fprintf(user_con->fp, "TBM-dev (built on " __DATE__ ")\n");
+	fprintf(admin_con->fp, "TBM-dev (built on " __DATE__ ")\n");
 
 	shell_init(&user_shell, user_cmds, user_con, "tbm $");
 	shell_init(&admin_shell, admin_cmds, admin_con, "tbm #");
diff --git a/source/shell/cmd.c b/source/shell/cmd.c
index 27d5760..f0234ad 100644
--- a/source/shell/cmd.c
+++ b/source/shell/cmd.c
@@ -5,7 +5,8 @@
 #include <console.h>
 #include <shell.h>
 
-void cmd_exec(struct cmd *cmds, FILE *out, const char **argv, size_t argc)
+void cmd_exec(struct cmd *cmds, struct console *con, const char **argv,
+	size_t argc)
 {
 	struct cmd *cmd;
 
@@ -14,13 +15,13 @@ void cmd_exec(struct cmd *cmds, FILE *out, const char **argv, size_t argc)
 
 	for (cmd = cmds; cmd->cmd; ++cmd) {
 		if (strcmp(cmd->cmd, argv[0]) == 0) {
-			cmd->exec(out, argv + 1, argc - 1);
+			cmd->exec(con, argv + 1, argc - 1);
 			break;
 		}
 	}
 }
 
-void cmd_parse(struct cmd *cmds, FILE *out, const char *line)
+void cmd_parse(struct cmd *cmds, struct console *con, const char *line)
 {
 	char **argv;
 	size_t argc;
@@ -28,12 +29,12 @@ void cmd_parse(struct cmd *cmds, FILE *out, const char *line)
 	if (!(argv = parse_args(line, &argc)))
 		return;
 
-	cmd_exec(cmds, out, (const char **)argv, argc);
+	cmd_exec(cmds, con, (const char **)argv, argc);
 	free(argv);
 }
 
 int shell_init(struct shell *shell, struct cmd *cmds,
-	struct usart_console *con, const char *prompt)
+	struct console *con, const char *prompt)
 {
 	if (!shell || !con)
 		return -1;
@@ -41,10 +42,9 @@ int shell_init(struct shell *shell, struct cmd *cmds,
 	memset(shell->line, '\0', sizeof shell->line);
 	shell->cmds = cmds;
 	shell->con = con;
-	shell->fp = console_to_fp(con);
 	shell->prompt = prompt;
 
-	fprintf(shell->fp, "%s ", prompt ? prompt : "#");
+	fprintf(shell->con->fp, "%s ", prompt ? prompt : "#");
 
 	return 0;
 }
@@ -60,8 +60,8 @@ int shell_parse(struct shell *shell)
 		0)
 		return ret;
 
-	cmd_parse(shell->cmds, shell->fp, shell->line);
-	fprintf(shell->fp, "%s ", shell->prompt ? shell->prompt : "#");
+	cmd_parse(shell->cmds, shell->con, shell->line);
+	fprintf(shell->con->fp, "%s ", shell->prompt ? shell->prompt : "#");
 	*shell->line = '\0';
 
 	return 0;
diff --git a/source/shell/flash.c b/source/shell/flash.c
index 0736e22..7e7ab86 100644
--- a/source/shell/flash.c
+++ b/source/shell/flash.c
@@ -7,6 +7,7 @@
 
 #include <errno.h>
 
+#include <console.h>
 #include <flash.h>
 #include <macros.h>
 #include <shell.h>
@@ -30,7 +31,7 @@ static void parse_hex(FILE *fp, char *buf, size_t len)
 	}
 }
 
-static void print_hex_ascii(FILE *out, uint32_t offset, const char *buf, size_t len)
+static void print_hex_ascii(FILE *fp, uint32_t offset, const char *buf, size_t len)
 {
 	size_t n, i;
 	uint8_t c;
@@ -38,27 +39,27 @@ static void print_hex_ascii(FILE *out, uint32_t offset, const char *buf, size_t
 	for (; len; buf += n, len -= n) {
 		n = min(len, 16);
 
-		fprintf(out, "%08" PRIx32 ": ", offset);
+		fprintf(fp, "%08" PRIx32 ": ", offset);
 
 		for (i = 0; i < 16; ++i) {
 			c = (i < n) ? buf[i] : 0;
-			fprintf(out, "%02x", c);
+			fprintf(fp, "%02x", c);
 		}
 
-		fprintf(out, " ");
+		fprintf(fp, " ");
 
 		for (i = 0; i < 16; ++i) {
 			c = (i < n) ? buf[i] : 0;
-			fprintf(out, "%c", isalnum(c) ? c : '.');
+			fprintf(fp, "%c", isalnum(c) ? c : '.');
 		}
 
-		fprintf(out, "\n");
+		fprintf(fp, "\n");
 
 		offset += n;
 	}
 }
 
-static void do_flash_probe(FILE *out, const char **argv, size_t argc)
+static void do_flash_probe(struct console *con, const char **argv, size_t argc)
 {
 	(void)argv;
 	(void)argc;
@@ -69,18 +70,18 @@ static void do_flash_probe(FILE *out, const char **argv, size_t argc)
 	}
 
 	if (!(flash = flash_probe())) {
-		fprintf(out, "error: unable to probe the flash device.\n");
+		fprintf(con->fp, "error: unable to probe the flash device.\n");
 		return;
 	}
 }
 
-static void do_flash_release(FILE *out, const char **argv, size_t argc)
+static void do_flash_release(struct console *con, const char **argv, size_t argc)
 {
 	(void)argv;
 	(void)argc;
 
 	if (!flash) {
-		fprintf(out, "no flash device currently active.\n");
+		fprintf(con->fp, "no flash device currently active.\n");
 		return;
 	}
 
@@ -88,7 +89,7 @@ static void do_flash_release(FILE *out, const char **argv, size_t argc)
 	flash = NULL;
 }
 
-static void do_flash_info(FILE *out, const char **argv, size_t argc)
+static void do_flash_info(struct console *con, const char **argv, size_t argc)
 {
 	size_t size, capacity;
 
@@ -96,43 +97,43 @@ static void do_flash_info(FILE *out, const char **argv, size_t argc)
 	(void)argc;
 
 	if (!flash) {
-		fprintf(out, "error: no flash device probed.\n");
+		fprintf(con->fp, "error: no flash device probed.\n");
 		return;
 	}
 
 	size = flash_get_size(flash);
 	capacity = flash_get_capacity(flash);
 
-	fprintf(out, "  size: %" PRSZu "/%" PRSZu " bytes (%" PRSZu "%% usage)\n",
+	fprintf(con->fp, "  size: %" PRSZu "/%" PRSZu " bytes (%" PRSZu "%% usage)\n",
 		size, capacity, 100 * size / capacity);
 }
 
-static void do_flash_read(FILE *out, const char **argv, size_t argc)
+static void do_flash_read(struct console *con, const char **argv, size_t argc)
 {
 	char buf[256];
 	size_t addr, len, nbytes;
 
 	if (argc < 2) {
-		fprintf(out, "usage: flash read <addr> <len>\n");
+		fprintf(con->fp, "usage: flash read <addr> <len>\n");
 		return;
 	}
 
 	if (!flash) {
-		fprintf(out, "error: no flash device probed.\n");
+		fprintf(con->fp, "error: no flash device probed.\n");
 		return;
 	}
 
 	addr = strtoull(argv[0], NULL, 16);
 
 	if (errno == EINVAL || errno == ERANGE) {
-		fprintf(out, "error: expected hexadecimal value for addr\n");
+		fprintf(con->fp, "error: expected hexadecimal value for addr\n");
 		return;
 	}
 
 	len = strtoull(argv[1], NULL, 16);
 
 	if (errno == EINVAL || errno == ERANGE) {
-		fprintf(out, "error: expected hexadecimal value for len\n");
+		fprintf(con->fp, "error: expected hexadecimal value for len\n");
 		return;
 	}
 
@@ -142,39 +143,39 @@ static void do_flash_read(FILE *out, const char **argv, size_t argc)
 	while (len) {
 		nbytes = min(len, 256);
 		flash_read(flash, addr, buf, nbytes);
-		print_hex_ascii(out, addr, buf, nbytes);
+		print_hex_ascii(con->fp, addr, buf, nbytes);
 
 		addr += nbytes;
 		len -= nbytes;
 	}
 }
 
-static void do_flash_write(FILE *out, const char **argv, size_t argc)
+static void do_flash_write(struct console *con, const char **argv, size_t argc)
 {
 	char buf[256];
 	size_t addr, len, nbytes;
 
 	if (argc < 2) {
-		fprintf(out, "usage: flash write <addr> <len>\n");
+		fprintf(con->fp, "usage: flash write <addr> <len>\n");
 		return;
 	}
 
 	if (!flash) {
-		fprintf(out, "error: no flash device probed.\n");
+		fprintf(con->fp, "error: no flash device probed.\n");
 		return;
 	}
 
 	addr = strtoull(argv[0], NULL, 16);
 
 	if (errno == EINVAL || errno == ERANGE) {
-		fprintf(out, "error: expected hexadecimal value for addr\n");
+		fprintf(con->fp, "error: expected hexadecimal value for addr\n");
 		return;
 	}
 
 	len = strtoull(argv[1], NULL, 16);
 
 	if (errno == EINVAL || errno == ERANGE) {
-		fprintf(out, "error: expected hexadecimal value for len\n");
+		fprintf(con->fp, "error: expected hexadecimal value for len\n");
 		return;
 	}
 
@@ -183,41 +184,44 @@ static void do_flash_write(FILE *out, const char **argv, size_t argc)
 
 	while (len) {
 		nbytes = min(len, 256);
-		parse_hex(out, buf, nbytes);
+		parse_hex(con->fp, buf, nbytes);
 		printf("\n");
-		print_hex_ascii(out, addr, buf, nbytes);
+		print_hex_ascii(con->fp, addr, buf, nbytes);
+
 		flash_write(flash, addr, buf, nbytes);
 
 		addr += nbytes;
 		len -= nbytes;
 	}
+
+	flash_sync(flash);
 }
 
-static void do_flash_erase(FILE *out, const char **argv, size_t argc)
+static void do_flash_erase(struct console *con, const char **argv, size_t argc)
 {
 	size_t addr, len;
 
 	if (argc < 2) {
-		fprintf(out, "usage: flash erase <addr> <len>\n");
+		fprintf(con->fp, "usage: flash erase <addr> <len>\n");
 		return;
 	}
 
 	if (!flash) {
-		fprintf(out, "error: no flash device probed.\n");
+		fprintf(con->fp, "error: no flash device probed.\n");
 		return;
 	}
 
 	addr = strtoull(argv[0], NULL, 16);
 
 	if (errno == EINVAL || errno == ERANGE) {
-		fprintf(out, "error: expected hexadecimal value for addr\n");
+		fprintf(con->fp, "error: expected hexadecimal value for addr\n");
 		return;
 	}
 
 	len = strtoull(argv[1], NULL, 16);
 
 	if (errno == EINVAL || errno == ERANGE) {
-		fprintf(out, "error: expected hexadecimal value for len\n");
+		fprintf(con->fp, "error: expected hexadecimal value for len\n");
 		return;
 	}
 
@@ -237,12 +241,12 @@ static struct cmd flash_cmds[] = {
 	{ NULL, NULL, NULL },
 };
 
-void do_flash_cmd(FILE *out, const char **argv, size_t argc)
+void do_flash_cmd(struct console *con, const char **argv, size_t argc)
 {
 	if (argc < 1) {
-		fprintf(out, "usage: flash <command>\n");
+		fprintf(con->fp, "usage: flash <command>\n");
 		return;
 	}
 
-	cmd_exec(flash_cmds, out, argv, argc);
+	cmd_exec(flash_cmds, con, argv, argc);
 }
diff --git a/source/shell/ftl.c b/source/shell/ftl.c
index ec382f7..d33d650 100644
--- a/source/shell/ftl.c
+++ b/source/shell/ftl.c
@@ -7,6 +7,7 @@
 
 #include <errno.h>
 
+#include <console.h>
 #include <flash.h>
 #include <ftl.h>
 #include <macros.h>
@@ -14,7 +15,7 @@
 
 extern struct flash_dev *flash;
 
-static void do_ftl_probe(FILE *out, const char **argv, size_t argc)
+static void do_ftl_probe(struct console *con, const char **argv, size_t argc)
 {
 	(void)argv;
 	(void)argc;
@@ -25,12 +26,12 @@ static void do_ftl_probe(FILE *out, const char **argv, size_t argc)
 	}
 
 	if (!(flash = flash_probe())) {
-		fprintf(out, "error: unable to probe the flash device.\n");
+		fprintf(con->fp, "error: unable to probe the flash device.\n");
 		return;
 	}
 
 	if (!(flash = ftl_mount(flash))) {
-		fprintf(out, "error: unable to mount the flash translation layer.\n");
+		fprintf(con->fp, "error: unable to mount the flash translation layer.\n");
 		return;
 	}
 }
@@ -40,12 +41,12 @@ static struct cmd ftl_cmds[] = {
 	{ NULL, NULL, NULL },
 };
 
-void do_ftl_cmd(FILE *out, const char **argv, size_t argc)
+void do_ftl_cmd(struct console *con, const char **argv, size_t argc)
 {
 	if (argc < 1) {
-		fprintf(out, "usage: flash <command>\n");
+		fprintf(con->fp, "usage: flash <command>\n");
 		return;
 	}
 
-	cmd_exec(ftl_cmds, out, argv, argc);
+	cmd_exec(ftl_cmds, con, argv, argc);
 }
diff --git a/source/shell/mufs.c b/source/shell/mufs.c
index b405afd..5e2bf22 100644
--- a/source/shell/mufs.c
+++ b/source/shell/mufs.c
@@ -7,6 +7,7 @@
 
 #include <errno.h>
 
+#include <console.h>
 #include <flash.h>
 #include <ftl.h>
 #include <macros.h>
@@ -17,15 +18,13 @@
 extern struct flash_dev *flash;
 struct mufs *mufs = NULL;
 
-extern struct usart_console *admin_con;
-
-static void do_mufs_mount(FILE *out, const char **argv, size_t argc)
+static void do_mufs_mount(struct console *con, const char **argv, size_t argc)
 {
 	(void)argc;
 	(void)argv;
 
 	if (!flash) {
-		fprintf(out, "error: no flash device probed.\n");
+		fprintf(con->fp, "error: no flash device probed.\n");
 		return;
 	}
 
@@ -35,20 +34,20 @@ static void do_mufs_mount(FILE *out, const char **argv, size_t argc)
 	}
 
 	if (!(mufs = mufs_mount(flash))) {
-		fprintf(out, "error: unable to mount the filesystem.\n");
+		fprintf(con->fp, "error: unable to mount the filesystem.\n");
 		return;
 	}
 
 	flash = NULL;
 }
 
-static void do_mufs_unmount(FILE *out, const char **argv, size_t argc)
+static void do_mufs_unmount(struct console *con, const char **argv, size_t argc)
 {
 	(void)argc;
 	(void)argv;
 
 	if (!mufs) {
-		fprintf(out, "no mufs filesystem currently active\n");
+		fprintf(con->fp, "no mufs filesystem currently active\n");
 		return;
 	}
 
@@ -62,74 +61,74 @@ static void do_mufs_unmount(FILE *out, const char **argv, size_t argc)
 	mufs = NULL;
 }
 
-static void do_mufs_format(FILE *out, const char **argv, size_t argc)
+static void do_mufs_format(struct console *con, const char **argv, size_t argc)
 {
 	(void)argc;
 	(void)argv;
 
 	if (!flash) {
-		fprintf(out, "error: no flash device probed.\n");
+		fprintf(con->fp, "error: no flash device probed.\n");
 		return;
 	}
 
 	if (mufs_format(flash) < 0) {
-		fprintf(out, "error: unable to format the flash device.\n");
+		fprintf(con->fp, "error: unable to format the flash device.\n");
 		return;
 	}
 }
 
-static void do_mufs_mkdir(FILE *out, const char **argv, size_t argc)
+static void do_mufs_mkdir(struct console *con, const char **argv, size_t argc)
 {
 	if (argc < 1) {
-		fprintf(out, "usage: mufs mkdir <path>\n");
+		fprintf(con->fp, "usage: mufs mkdir <path>\n");
 		return;
 	}
 
 	if (!mufs) {
-		fprintf(out, "error: no file system mounted.\n");
+		fprintf(con->fp, "error: no file system mounted.\n");
 		return;
 	}
 
 	if (mufs_mkdir(mufs, argv[0]) < 0) {
-		fprintf(out, "error: unable to create the directory\n");
+		fprintf(con->fp, "error: unable to create the directory\n");
 		return;
 	}
 }
 
-static void do_mufs_rmdir(FILE *out, const char **argv, size_t argc)
+static void do_mufs_rmdir(struct console *con, const char **argv, size_t argc)
 {
 	if (argc < 1) {
-		fprintf(out, "usage: mufs rmdir <path>\n");
+		fprintf(con->fp, "usage: mufs rmdir <path>\n");
 		return;
 	}
 
 	if (!mufs) {
-		fprintf(out, "error: no file system mounted.\n");
+		fprintf(con->fp, "error: no file system mounted.\n");
 		return;
 	}
 
 	if (mufs_rmdir(mufs, argv[0]) < 0) {
-		fprintf(out, "error: unable to remove the directory\n");
+		fprintf(con->fp, "error: unable to remove the directory\n");
 		return;
 	}
 }
 
-static void do_mufs_stat(FILE *out, const char **argv, size_t argc)
+static void do_mufs_stat(struct console *con, const char **argv, size_t argc)
 {
 	struct mufs_stat stat;
 
 	if (argc < 1) {
-		fprintf(out, "usage: mufs stat <path>\n");
+		fprintf(con->fp, "usage: mufs stat <path>\n");
 		return;
 	}
 
 	if (!mufs) {
-		fprintf(out, "error: no file system mounted.\n");
+		fprintf(con->fp, "error: no file system mounted.\n");
 		return;
 	}
 
 	if (mufs_stat(mufs, argv[0], &stat) < 0) {
-		fprintf(out, "error: unable to stat the file\n");
+		fprintf(con->fp, "error: unable to stat the file\n");
 		return;
 	}
 
@@ -142,82 +141,82 @@ static void do_mufs_stat(FILE *out, const char **argv, size_t argc)
 	printf("  file size: %" PRIu32 " bytes\n", stat.file_size);
 }
 
-static void do_mufs_cat(FILE *out, const char **argv, size_t argc)
+static void do_mufs_cat(struct console *con, const char **argv, size_t argc)
 {
 	char data[256];
 	struct mufs_file *file;
 
 	if (argc < 1) {
-		fprintf(out, "usage: mufs cat <path>\n");
+		fprintf(con->fp, "usage: mufs cat <path>\n");
 		return;
 	}
 
 	if (!mufs) {
-		fprintf(out, "error: no file system mounted.\n");
+		fprintf(con->fp, "error: no file system mounted.\n");
 		return;
 	}
 
 	if (!(file = mufs_open(mufs, argv[0], MUFS_READ))) {
-		fprintf(out, "error: unable to open the file\n");
+		fprintf(con->fp, "error: unable to open the file\n");
 		return;
 	}
 
 	while (mufs_read(file, data, sizeof data) != 0) {
-		fwrite(data, sizeof *data, sizeof data, out);
+		fwrite(data, sizeof *data, sizeof data, con->fp);
 	}
 
 	mufs_close(file);
 }
 
-static void do_mufs_write(FILE *out, const char **argv, size_t argc)
+static void do_mufs_write(struct console *con, const char **argv, size_t argc)
 {
 	char data[256];
 	struct mufs_file *file;
 	ssize_t ret;
 
 	if (argc < 1) {
-		fprintf(out, "usage: mufs write <path>\n");
+		fprintf(con->fp, "usage: mufs write <path>\n");
 		return;
 	}
 
 	if (!mufs) {
-		fprintf(out, "error: no file system mounted.\n");
+		fprintf(con->fp, "error: no file system mounted.\n");
 		return;
 	}
 
 	if (!(file = mufs_open(mufs, argv[0], MUFS_WRITE))) {
-		fprintf(out, "error: unable to open the file\n");
+		fprintf(con->fp, "error: unable to open the file\n");
 		return;
 	}
 
-	fprintf(out, "> ");
+	fprintf(con->fp, "> ");
 
-	while ((ret = console_read(admin_con, data, sizeof data)) > 0) {
+	while ((ret = console_read(con, data, sizeof data)) > 0) {
 		mufs_write(file, data, ret);
-		fprintf(out, "> ");
+		fprintf(con->fp, "> ");
 	}
 
 	mufs_close(file);
 }
 
-static void do_mufs_append(FILE *out, const char **argv, size_t argc)
+static void do_mufs_append(struct console *con, const char **argv, size_t argc)
 {
 	struct mufs_file *file;
 	char data[256];
 	size_t n;
 
 	if (argc < 2) {
-		fprintf(out, "usage: mufs append <path> <line>\n");
+		fprintf(con->fp, "usage: mufs append <path> <line>\n");
 		return;
 	}
 
 	if (!mufs) {
-		fprintf(out, "error: no file system mounted.\n");
+		fprintf(con->fp, "error: no file system mounted.\n");
 		return;
 	}
 
 	if (!(file = mufs_open(mufs, argv[0], MUFS_WRITE | MUFS_APPEND))) {
-		fprintf(out, "error: unable to open the file\n");
+		fprintf(con->fp, "error: unable to open the file\n");
 		return;
 	}
 
@@ -231,43 +230,43 @@ static void do_mufs_append(FILE *out, const char **argv, size_t argc)
 	mufs_close(file);
 }
 
-static void do_mufs_mv(FILE *out, const char **argv, size_t argc)
+static void do_mufs_mv(struct console *con, const char **argv, size_t argc)
 {
 	if (argc < 2) {
-		fprintf(out, "usage: mufs mv <old> <new>\n");
+		fprintf(con->fp, "usage: mufs mv <old> <new>\n");
 		return;
 	}
 
 	if (!mufs) {
-		fprintf(out, "error: no file system mounted.\n");
+		fprintf(con->fp, "error: no file system mounted.\n");
 		return;
 	}
 
 	if (mufs_rename(mufs, argv[0], argv[1]) < 0) {
-		fprintf(out, "error: unable to move the file\n");
+		fprintf(con->fp, "error: unable to move the file\n");
 		return;
 	}
 }
 
-static void do_mufs_rm(FILE *out, const char **argv, size_t argc)
+static void do_mufs_rm(struct console *con, const char **argv, size_t argc)
 {
 	if (argc < 1) {
-		fprintf(out, "usage: mufs rm <path>\n");
+		fprintf(con->fp, "usage: mufs rm <path>\n");
 		return;
 	}
 
 	if (!mufs) {
-		fprintf(out, "error: no file system mounted.\n");
+		fprintf(con->fp, "error: no file system mounted.\n");
 		return;
 	}
 
 	if (mufs_unlink(mufs, argv[0]) < 0) {
-		fprintf(out, "error: unable to remove the file\n");
+		fprintf(con->fp, "error: unable to remove the file\n");
 		return;
 	}
 }
 
-static void do_mufs_ls(FILE *out, const char **argv, size_t argc)
+static void do_mufs_ls(struct console *con, const char **argv, size_t argc)
 {
 	struct mufs_dirent ent;
 	struct mufs_dir *dir;
@@ -278,17 +277,17 @@ static void do_mufs_ls(FILE *out, const char **argv, size_t argc)
 	}
 
 	if (!mufs) {
-		fprintf(out, "error: no file system mounted.\n");
+		fprintf(con->fp, "error: no file system mounted.\n");
 		return;
 	}
 
 	if (!(dir = mufs_opendir(mufs, path))) {
-		fprintf(out, "error: unable to open the directory\n");
+		fprintf(con->fp, "error: unable to open the directory\n");
 		return;
 	}
 
 	while (mufs_readdir(dir, &ent) == 0) {
-		fprintf(out, "%s\n", ent.path);
+		fprintf(con->fp, "%s\n", ent.path);
 	}
 
 	mufs_closedir(dir);
@@ -310,7 +309,7 @@ static struct cmd mufs_cmds[] = {
 	{ NULL, NULL, NULL },
 };
 
-void do_mufs_cmd(FILE *out, const char **argv, size_t argc)
+void do_mufs_cmd(struct console *con, const char **argv, size_t argc)
 {
-	cmd_exec(mufs_cmds, out, argv, argc);
+	cmd_exec(mufs_cmds, con, argv, argc);
 }